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Finding the Fourth Proportional to 555.07, 766.03 and 322.19

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Solution

The fourth proportional to 555.07, 766.03 and 322.19 is: 444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.07 : 766.03 = 322.19 : x
  2. Step 2: Convert to fraction form
    555.07/766.03 = 322.19/x
  3. Step 3: Cross multiply
    555.07x = 766.03 × 322.19
  4. Step 4: Simplify right side
    555.07x = 246,807.21
  5. Step 5: Solve for x
    x = 246,807.21/555.07
  6. Step 6: Final answer
    x = 444.65

Related Problems

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Half scale
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Double scale
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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.