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Finding the Fourth Proportional to 275,948.80, 413,820.80 and 109,702.40

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Solution

The fourth proportional to 275,948.80, 413,820.80 and 109,702.40 is: 164,512.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,948.80 : 413,820.80 = 109,702.40 : x
  2. Step 2: Convert to fraction form
    275,948.80/413,820.80 = 109,702.40/x
  3. Step 3: Cross multiply
    275,948.80x = 413,820.80 × 109,702.40
  4. Step 4: Simplify right side
    275,948.80x = 45,397,134,929.92
  5. Step 5: Solve for x
    x = 45,397,134,929.92/275,948.80
  6. Step 6: Final answer
    x = 164,512.89

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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.