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Finding the Fourth Proportional to 308,007.02, 425,045.19 and 172,042.92

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Solution

The fourth proportional to 308,007.02, 425,045.19 and 172,042.92 is: 237,416.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,007.02 : 425,045.19 = 172,042.92 : x
  2. Step 2: Convert to fraction form
    308,007.02/425,045.19 = 172,042.92/x
  3. Step 3: Cross multiply
    308,007.02x = 425,045.19 × 172,042.92
  4. Step 4: Simplify right side
    308,007.02x = 73,126,015,619.55
  5. Step 5: Solve for x
    x = 73,126,015,619.55/308,007.02
  6. Step 6: Final answer
    x = 237,416.72

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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.