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Finding the Fourth Proportional to 435,987.90, 653,714.22 and 169,437.18

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Solution

The fourth proportional to 435,987.90, 653,714.22 and 169,437.18 is: 254,051.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,987.90 : 653,714.22 = 169,437.18 : x
  2. Step 2: Convert to fraction form
    435,987.90/653,714.22 = 169,437.18/x
  3. Step 3: Cross multiply
    435,987.90x = 653,714.22 × 169,437.18
  4. Step 4: Simplify right side
    435,987.90x = 110,763,493,962.70
  5. Step 5: Solve for x
    x = 110,763,493,962.70/435,987.90
  6. Step 6: Final answer
    x = 254,051.76

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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.