Home / 515,013.30-772,507.80-141,036.30

Finding the Fourth Proportional to 515,013.30, 772,507.80 and 141,036.30

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Solution

The fourth proportional to 515,013.30, 772,507.80 and 141,036.30 is: 211,551.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,013.30 : 772,507.80 = 141,036.30 : x
  2. Step 2: Convert to fraction form
    515,013.30/772,507.80 = 141,036.30/x
  3. Step 3: Cross multiply
    515,013.30x = 772,507.80 × 141,036.30
  4. Step 4: Simplify right side
    515,013.30x = 108,951,641,833.14
  5. Step 5: Solve for x
    x = 108,951,641,833.14/515,013.30
  6. Step 6: Final answer
    x = 211,551.12

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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.