Home / 308,339.20-425,527.85-172,373.72

Finding the Fourth Proportional to 308,339.20, 425,527.85 and 172,373.72

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Solution

The fourth proportional to 308,339.20, 425,527.85 and 172,373.72 is: 237,886.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,339.20 : 425,527.85 = 172,373.72 : x
  2. Step 2: Convert to fraction form
    308,339.20/425,527.85 = 172,373.72/x
  3. Step 3: Cross multiply
    308,339.20x = 425,527.85 × 172,373.72
  4. Step 4: Simplify right side
    308,339.20x = 73,349,817,606.23
  5. Step 5: Solve for x
    x = 73,349,817,606.23/308,339.20
  6. Step 6: Final answer
    x = 237,886.78

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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.