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Finding the Fourth Proportional to 258,937.59, 388,250.85 and 101,240.31

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Solution

The fourth proportional to 258,937.59, 388,250.85 and 101,240.31 is: 151,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,937.59 : 388,250.85 = 101,240.31 : x
  2. Step 2: Convert to fraction form
    258,937.59/388,250.85 = 101,240.31/x
  3. Step 3: Cross multiply
    258,937.59x = 388,250.85 × 101,240.31
  4. Step 4: Simplify right side
    258,937.59x = 39,306,636,411.76
  5. Step 5: Solve for x
    x = 39,306,636,411.76/258,937.59
  6. Step 6: Final answer
    x = 151,799.65

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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.