Home / 487,974.40-732,081.60-168,131.20

Finding the Fourth Proportional to 487,974.40, 732,081.60 and 168,131.20

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Solution

The fourth proportional to 487,974.40, 732,081.60 and 168,131.20 is: 252,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,974.40 : 732,081.60 = 168,131.20 : x
  2. Step 2: Convert to fraction form
    487,974.40/732,081.60 = 168,131.20/x
  3. Step 3: Cross multiply
    487,974.40x = 732,081.60 × 168,131.20
  4. Step 4: Simplify right side
    487,974.40x = 123,085,757,905.92
  5. Step 5: Solve for x
    x = 123,085,757,905.92/487,974.40
  6. Step 6: Final answer
    x = 252,238.15

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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.