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Finding the Fourth Proportional to 359,271.20, 538,906.80 and 240,298.40

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Solution

The fourth proportional to 359,271.20, 538,906.80 and 240,298.40 is: 360,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,271.20 : 538,906.80 = 240,298.40 : x
  2. Step 2: Convert to fraction form
    359,271.20/538,906.80 = 240,298.40/x
  3. Step 3: Cross multiply
    359,271.20x = 538,906.80 × 240,298.40
  4. Step 4: Simplify right side
    359,271.20x = 129,498,441,789.12
  5. Step 5: Solve for x
    x = 129,498,441,789.12/359,271.20
  6. Step 6: Final answer
    x = 360,447.60

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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.