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Finding the Fourth Proportional to 372,187.64, 558,281.73 and 91,704.89

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Solution

The fourth proportional to 372,187.64, 558,281.73 and 91,704.89 is: 137,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,187.64 : 558,281.73 = 91,704.89 : x
  2. Step 2: Convert to fraction form
    372,187.64/558,281.73 = 91,704.89/x
  3. Step 3: Cross multiply
    372,187.64x = 558,281.73 × 91,704.89
  4. Step 4: Simplify right side
    372,187.64x = 51,197,164,638.66
  5. Step 5: Solve for x
    x = 51,197,164,638.66/372,187.64
  6. Step 6: Final answer
    x = 137,557.40

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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.