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Finding the Fourth Proportional to 150,285.28, 207,393.28 and 86,622.72

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Solution

The fourth proportional to 150,285.28, 207,393.28 and 86,622.72 is: 119,539.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,285.28 : 207,393.28 = 86,622.72 : x
  2. Step 2: Convert to fraction form
    150,285.28/207,393.28 = 86,622.72/x
  3. Step 3: Cross multiply
    150,285.28x = 207,393.28 × 86,622.72
  4. Step 4: Simplify right side
    150,285.28x = 17,964,970,023.32
  5. Step 5: Solve for x
    x = 17,964,970,023.32/150,285.28
  6. Step 6: Final answer
    x = 119,539.12

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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.