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Finding the Fourth Proportional to 607.22, 837.96 and 345.24

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Solution

The fourth proportional to 607.22, 837.96 and 345.24 is: 476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.22 : 837.96 = 345.24 : x
  2. Step 2: Convert to fraction form
    607.22/837.96 = 345.24/x
  3. Step 3: Cross multiply
    607.22x = 837.96 × 345.24
  4. Step 4: Simplify right side
    607.22x = 289,291.39
  5. Step 5: Solve for x
    x = 289,291.39/607.22
  6. Step 6: Final answer
    x = 476.42

Related Problems

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Double scale
Find fourth proportional to 608.22, 839.33 and 346.24
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.