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Finding the Fourth Proportional to 224,352.30, 309,612 and 122,379.48

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Solution

The fourth proportional to 224,352.30, 309,612 and 122,379.48 is: 168,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,352.30 : 309,612 = 122,379.48 : x
  2. Step 2: Convert to fraction form
    224,352.30/309,612 = 122,379.48/x
  3. Step 3: Cross multiply
    224,352.30x = 309,612 × 122,379.48
  4. Step 4: Simplify right side
    224,352.30x = 37,890,154,013.70
  5. Step 5: Solve for x
    x = 37,890,154,013.70/224,352.30
  6. Step 6: Final answer
    x = 168,886.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.