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Finding the Fourth Proportional to 507.23, 700.08 and 330.19

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Solution

The fourth proportional to 507.23, 700.08 and 330.19 is: 455.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.23 : 700.08 = 330.19 : x
  2. Step 2: Convert to fraction form
    507.23/700.08 = 330.19/x
  3. Step 3: Cross multiply
    507.23x = 700.08 × 330.19
  4. Step 4: Simplify right side
    507.23x = 231,159.42
  5. Step 5: Solve for x
    x = 231,159.42/507.23
  6. Step 6: Final answer
    x = 455.73

Related Problems

Find fourth proportional to 253.62, 350.04 and 165.10
Half scale
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Double scale
Find fourth proportional to 508.23, 701.46 and 331.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.