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Finding the Fourth Proportional to 172,008.40, 257,429.40 and 151,013.20

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Solution

The fourth proportional to 172,008.40, 257,429.40 and 151,013.20 is: 226,007.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,008.40 : 257,429.40 = 151,013.20 : x
  2. Step 2: Convert to fraction form
    172,008.40/257,429.40 = 151,013.20/x
  3. Step 3: Cross multiply
    172,008.40x = 257,429.40 × 151,013.20
  4. Step 4: Simplify right side
    172,008.40x = 38,875,237,468.08
  5. Step 5: Solve for x
    x = 38,875,237,468.08/172,008.40
  6. Step 6: Final answer
    x = 226,007.78

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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.