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Finding the Fourth Proportional to 226,678.59, 312,812.10 and 124,698.09

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Solution

The fourth proportional to 226,678.59, 312,812.10 and 124,698.09 is: 172,080.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,678.59 : 312,812.10 = 124,698.09 : x
  2. Step 2: Convert to fraction form
    226,678.59/312,812.10 = 124,698.09/x
  3. Step 3: Cross multiply
    226,678.59x = 312,812.10 × 124,698.09
  4. Step 4: Simplify right side
    226,678.59x = 39,007,071,398.89
  5. Step 5: Solve for x
    x = 39,007,071,398.89/226,678.59
  6. Step 6: Final answer
    x = 172,080.97

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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.