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Finding the Fourth Proportional to 397,272.70, 595,909.05 and 255,555.10

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Solution

The fourth proportional to 397,272.70, 595,909.05 and 255,555.10 is: 383,332.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,272.70 : 595,909.05 = 255,555.10 : x
  2. Step 2: Convert to fraction form
    397,272.70/595,909.05 = 255,555.10/x
  3. Step 3: Cross multiply
    397,272.70x = 595,909.05 × 255,555.10
  4. Step 4: Simplify right side
    397,272.70x = 152,287,596,863.66
  5. Step 5: Solve for x
    x = 152,287,596,863.66/397,272.70
  6. Step 6: Final answer
    x = 383,332.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.