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Finding the Fourth Proportional to 359,688.32, 540,144.84 and 344,641.76

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Solution

The fourth proportional to 359,688.32, 540,144.84 and 344,641.76 is: 517,549.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,688.32 : 540,144.84 = 344,641.76 : x
  2. Step 2: Convert to fraction form
    359,688.32/540,144.84 = 344,641.76/x
  3. Step 3: Cross multiply
    359,688.32x = 540,144.84 × 344,641.76
  4. Step 4: Simplify right side
    359,688.32x = 186,156,468,312.52
  5. Step 5: Solve for x
    x = 186,156,468,312.52/359,688.32
  6. Step 6: Final answer
    x = 517,549.38

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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.