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Finding the Fourth Proportional to 359,028.60, 538,542.90 and 106,318.20

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Solution

The fourth proportional to 359,028.60, 538,542.90 and 106,318.20 is: 159,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,028.60 : 538,542.90 = 106,318.20 : x
  2. Step 2: Convert to fraction form
    359,028.60/538,542.90 = 106,318.20/x
  3. Step 3: Cross multiply
    359,028.60x = 538,542.90 × 106,318.20
  4. Step 4: Simplify right side
    359,028.60x = 57,256,911,750.78
  5. Step 5: Solve for x
    x = 57,256,911,750.78/359,028.60
  6. Step 6: Final answer
    x = 159,477.30

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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.