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Finding the Fourth Proportional to 250,633.60, 375,972.48 and 70,720.61

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Solution

The fourth proportional to 250,633.60, 375,972.48 and 70,720.61 is: 106,087.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,633.60 : 375,972.48 = 70,720.61 : x
  2. Step 2: Convert to fraction form
    250,633.60/375,972.48 = 70,720.61/x
  3. Step 3: Cross multiply
    250,633.60x = 375,972.48 × 70,720.61
  4. Step 4: Simplify right side
    250,633.60x = 26,589,004,068.74
  5. Step 5: Solve for x
    x = 26,589,004,068.74/250,633.60
  6. Step 6: Final answer
    x = 106,087.15

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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.