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Finding the Fourth Proportional to 340,001.64, 509,535.90 and 215,119.08

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Solution

The fourth proportional to 340,001.64, 509,535.90 and 215,119.08 is: 322,383.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,001.64 : 509,535.90 = 215,119.08 : x
  2. Step 2: Convert to fraction form
    340,001.64/509,535.90 = 215,119.08/x
  3. Step 3: Cross multiply
    340,001.64x = 509,535.90 × 215,119.08
  4. Step 4: Simplify right side
    340,001.64x = 109,610,894,034.97
  5. Step 5: Solve for x
    x = 109,610,894,034.97/340,001.64
  6. Step 6: Final answer
    x = 322,383.43

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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.