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Finding the Fourth Proportional to 231,572, 319,569.36 and 125,588

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Solution

The fourth proportional to 231,572, 319,569.36 and 125,588 is: 173,311.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,572 : 319,569.36 = 125,588 : x
  2. Step 2: Convert to fraction form
    231,572/319,569.36 = 125,588/x
  3. Step 3: Cross multiply
    231,572x = 319,569.36 × 125,588
  4. Step 4: Simplify right side
    231,572x = 40,134,076,783.68
  5. Step 5: Solve for x
    x = 40,134,076,783.68/231,572
  6. Step 6: Final answer
    x = 173,311.44

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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.