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Finding the Fourth Proportional to 408,001.42, 563,030.78 and 226,708.68

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Solution

The fourth proportional to 408,001.42, 563,030.78 and 226,708.68 is: 312,851.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,001.42 : 563,030.78 = 226,708.68 : x
  2. Step 2: Convert to fraction form
    408,001.42/563,030.78 = 226,708.68/x
  3. Step 3: Cross multiply
    408,001.42x = 563,030.78 × 226,708.68
  4. Step 4: Simplify right side
    408,001.42x = 127,643,964,933.17
  5. Step 5: Solve for x
    x = 127,643,964,933.17/408,001.42
  6. Step 6: Final answer
    x = 312,851.77

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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.