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Finding the Fourth Proportional to 371,877.60, 558,334.80 and 231,909.60

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Solution

The fourth proportional to 371,877.60, 558,334.80 and 231,909.60 is: 348,187.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,877.60 : 558,334.80 = 231,909.60 : x
  2. Step 2: Convert to fraction form
    371,877.60/558,334.80 = 231,909.60/x
  3. Step 3: Cross multiply
    371,877.60x = 558,334.80 × 231,909.60
  4. Step 4: Simplify right side
    371,877.60x = 129,483,200,134.08
  5. Step 5: Solve for x
    x = 129,483,200,134.08/371,877.60
  6. Step 6: Final answer
    x = 348,187.68

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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.