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Finding the Fourth Proportional to 359,520.42, 538,860.78 and 270,487.92

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Solution

The fourth proportional to 359,520.42, 538,860.78 and 270,487.92 is: 405,416.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,520.42 : 538,860.78 = 270,487.92 : x
  2. Step 2: Convert to fraction form
    359,520.42/538,860.78 = 270,487.92/x
  3. Step 3: Cross multiply
    359,520.42x = 538,860.78 × 270,487.92
  4. Step 4: Simplify right side
    359,520.42x = 145,755,331,551.78
  5. Step 5: Solve for x
    x = 145,755,331,551.78/359,520.42
  6. Step 6: Final answer
    x = 405,416.00

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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.