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Finding the Fourth Proportional to 239,798.76, 359,697.90 and 71,318.40

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Solution

The fourth proportional to 239,798.76, 359,697.90 and 71,318.40 is: 106,977.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,798.76 : 359,697.90 = 71,318.40 : x
  2. Step 2: Convert to fraction form
    239,798.76/359,697.90 = 71,318.40/x
  3. Step 3: Cross multiply
    239,798.76x = 359,697.90 × 71,318.40
  4. Step 4: Simplify right side
    239,798.76x = 25,653,078,711.36
  5. Step 5: Solve for x
    x = 25,653,078,711.36/239,798.76
  6. Step 6: Final answer
    x = 106,977.53

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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.