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Finding the Fourth Proportional to 439,635.40, 659,671.80 and 173,404.60

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Solution

The fourth proportional to 439,635.40, 659,671.80 and 173,404.60 is: 260,193.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,635.40 : 659,671.80 = 173,404.60 : x
  2. Step 2: Convert to fraction form
    439,635.40/659,671.80 = 173,404.60/x
  3. Step 3: Cross multiply
    439,635.40x = 659,671.80 × 173,404.60
  4. Step 4: Simplify right side
    439,635.40x = 114,390,124,610.28
  5. Step 5: Solve for x
    x = 114,390,124,610.28/439,635.40
  6. Step 6: Final answer
    x = 260,193.16

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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.