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Finding the Fourth Proportional to 207,222.72, 285,898.86 and 125,520.72

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Solution

The fourth proportional to 207,222.72, 285,898.86 and 125,520.72 is: 173,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,222.72 : 285,898.86 = 125,520.72 : x
  2. Step 2: Convert to fraction form
    207,222.72/285,898.86 = 125,520.72/x
  3. Step 3: Cross multiply
    207,222.72x = 285,898.86 × 125,520.72
  4. Step 4: Simplify right side
    207,222.72x = 35,886,230,754.38
  5. Step 5: Solve for x
    x = 35,886,230,754.38/207,222.72
  6. Step 6: Final answer
    x = 173,177.11

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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.