Home / 441,985.14-663,079.68-138,362.04

Finding the Fourth Proportional to 441,985.14, 663,079.68 and 138,362.04

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Solution

The fourth proportional to 441,985.14, 663,079.68 and 138,362.04 is: 207,574.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,985.14 : 663,079.68 = 138,362.04 : x
  2. Step 2: Convert to fraction form
    441,985.14/663,079.68 = 138,362.04/x
  3. Step 3: Cross multiply
    441,985.14x = 663,079.68 × 138,362.04
  4. Step 4: Simplify right side
    441,985.14x = 91,745,057,207.35
  5. Step 5: Solve for x
    x = 91,745,057,207.35/441,985.14
  6. Step 6: Final answer
    x = 207,574.98

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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.