Home / 521,731.35-782,141.40-202,101.30

Finding the Fourth Proportional to 521,731.35, 782,141.40 and 202,101.30

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Solution

The fourth proportional to 521,731.35, 782,141.40 and 202,101.30 is: 302,975.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,731.35 : 782,141.40 = 202,101.30 : x
  2. Step 2: Convert to fraction form
    521,731.35/782,141.40 = 202,101.30/x
  3. Step 3: Cross multiply
    521,731.35x = 782,141.40 × 202,101.30
  4. Step 4: Simplify right side
    521,731.35x = 158,071,793,723.82
  5. Step 5: Solve for x
    x = 158,071,793,723.82/521,731.35
  6. Step 6: Final answer
    x = 302,975.46

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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.