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Finding the Fourth Proportional to 326,574.39, 489,892.50 and 126,910.17

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Solution

The fourth proportional to 326,574.39, 489,892.50 and 126,910.17 is: 190,377.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,574.39 : 489,892.50 = 126,910.17 : x
  2. Step 2: Convert to fraction form
    326,574.39/489,892.50 = 126,910.17/x
  3. Step 3: Cross multiply
    326,574.39x = 489,892.50 × 126,910.17
  4. Step 4: Simplify right side
    326,574.39x = 62,172,339,822.17
  5. Step 5: Solve for x
    x = 62,172,339,822.17/326,574.39
  6. Step 6: Final answer
    x = 190,377.27

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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.