Home / 226,436.04-312,475.17-129,636.66

Finding the Fourth Proportional to 226,436.04, 312,475.17 and 129,636.66

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Solution

The fourth proportional to 226,436.04, 312,475.17 and 129,636.66 is: 178,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,436.04 : 312,475.17 = 129,636.66 : x
  2. Step 2: Convert to fraction form
    226,436.04/312,475.17 = 129,636.66/x
  3. Step 3: Cross multiply
    226,436.04x = 312,475.17 × 129,636.66
  4. Step 4: Simplify right side
    226,436.04x = 40,508,237,371.73
  5. Step 5: Solve for x
    x = 40,508,237,371.73/226,436.04
  6. Step 6: Final answer
    x = 178,894.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.