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Finding the Fourth Proportional to 359,695.20, 539,542.80 and 123,002.40

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Solution

The fourth proportional to 359,695.20, 539,542.80 and 123,002.40 is: 184,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,695.20 : 539,542.80 = 123,002.40 : x
  2. Step 2: Convert to fraction form
    359,695.20/539,542.80 = 123,002.40/x
  3. Step 3: Cross multiply
    359,695.20x = 539,542.80 × 123,002.40
  4. Step 4: Simplify right side
    359,695.20x = 66,365,059,302.72
  5. Step 5: Solve for x
    x = 66,365,059,302.72/359,695.20
  6. Step 6: Final answer
    x = 184,503.60

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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.