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Finding the Fourth Proportional to 359,337.60, 495,979.20 and 216,259.20

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Solution

The fourth proportional to 359,337.60, 495,979.20 and 216,259.20 is: 298,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,337.60 : 495,979.20 = 216,259.20 : x
  2. Step 2: Convert to fraction form
    359,337.60/495,979.20 = 216,259.20/x
  3. Step 3: Cross multiply
    359,337.60x = 495,979.20 × 216,259.20
  4. Step 4: Simplify right side
    359,337.60x = 107,260,065,008.64
  5. Step 5: Solve for x
    x = 107,260,065,008.64/359,337.60
  6. Step 6: Final answer
    x = 298,493.85

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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.