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Finding the Fourth Proportional to 354,477.90, 531,714.12 and 88,236.60

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Solution

The fourth proportional to 354,477.90, 531,714.12 and 88,236.60 is: 132,354.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,477.90 : 531,714.12 = 88,236.60 : x
  2. Step 2: Convert to fraction form
    354,477.90/531,714.12 = 88,236.60/x
  3. Step 3: Cross multiply
    354,477.90x = 531,714.12 × 88,236.60
  4. Step 4: Simplify right side
    354,477.90x = 46,916,646,120.79
  5. Step 5: Solve for x
    x = 46,916,646,120.79/354,477.90
  6. Step 6: Final answer
    x = 132,354.22

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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.