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Finding the Fourth Proportional to 432,298.80, 648,010.80 and 254,714.40

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Solution

The fourth proportional to 432,298.80, 648,010.80 and 254,714.40 is: 381,813.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,298.80 : 648,010.80 = 254,714.40 : x
  2. Step 2: Convert to fraction form
    432,298.80/648,010.80 = 254,714.40/x
  3. Step 3: Cross multiply
    432,298.80x = 648,010.80 × 254,714.40
  4. Step 4: Simplify right side
    432,298.80x = 165,057,682,115.52
  5. Step 5: Solve for x
    x = 165,057,682,115.52/432,298.80
  6. Step 6: Final answer
    x = 381,813.88

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1.5x scale

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.