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Finding the Fourth Proportional to 258,101.34, 387,152.00 and 100,366.70

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Solution

The fourth proportional to 258,101.34, 387,152.00 and 100,366.70 is: 150,550.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,101.34 : 387,152.00 = 100,366.70 : x
  2. Step 2: Convert to fraction form
    258,101.34/387,152.00 = 100,366.70/x
  3. Step 3: Cross multiply
    258,101.34x = 387,152.00 × 100,366.70
  4. Step 4: Simplify right side
    258,101.34x = 38,857,167,141.74
  5. Step 5: Solve for x
    x = 38,857,167,141.74/258,101.34
  6. Step 6: Final answer
    x = 150,550.04

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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.