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Finding the Fourth Proportional to 431,989.08, 648,272.88 and 179,269.80

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Solution

The fourth proportional to 431,989.08, 648,272.88 and 179,269.80 is: 269,024.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,989.08 : 648,272.88 = 179,269.80 : x
  2. Step 2: Convert to fraction form
    431,989.08/648,272.88 = 179,269.80/x
  3. Step 3: Cross multiply
    431,989.08x = 648,272.88 × 179,269.80
  4. Step 4: Simplify right side
    431,989.08x = 116,215,749,543.02
  5. Step 5: Solve for x
    x = 116,215,749,543.02/431,989.08
  6. Step 6: Final answer
    x = 269,024.74

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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.