Home / 317,885.13-476,828.10-81,228.04

Finding the Fourth Proportional to 317,885.13, 476,828.10 and 81,228.04

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Solution

The fourth proportional to 317,885.13, 476,828.10 and 81,228.04 is: 121,842.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,885.13 : 476,828.10 = 81,228.04 : x
  2. Step 2: Convert to fraction form
    317,885.13/476,828.10 = 81,228.04/x
  3. Step 3: Cross multiply
    317,885.13x = 476,828.10 × 81,228.04
  4. Step 4: Simplify right side
    317,885.13x = 38,731,810,787.85
  5. Step 5: Solve for x
    x = 38,731,810,787.85/317,885.13
  6. Step 6: Final answer
    x = 121,842.16

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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.