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Finding the Fourth Proportional to 231,571, 319,567.98 and 125,587

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Solution

The fourth proportional to 231,571, 319,567.98 and 125,587 is: 173,310.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,571 : 319,567.98 = 125,587 : x
  2. Step 2: Convert to fraction form
    231,571/319,567.98 = 125,587/x
  3. Step 3: Cross multiply
    231,571x = 319,567.98 × 125,587
  4. Step 4: Simplify right side
    231,571x = 40,133,583,904.26
  5. Step 5: Solve for x
    x = 40,133,583,904.26/231,571
  6. Step 6: Final answer
    x = 173,310.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.