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Finding the Fourth Proportional to 186,279.88, 257,058.50 and 101,397

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Solution

The fourth proportional to 186,279.88, 257,058.50 and 101,397 is: 139,923.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,279.88 : 257,058.50 = 101,397 : x
  2. Step 2: Convert to fraction form
    186,279.88/257,058.50 = 101,397/x
  3. Step 3: Cross multiply
    186,279.88x = 257,058.50 × 101,397
  4. Step 4: Simplify right side
    186,279.88x = 26,064,960,724.50
  5. Step 5: Solve for x
    x = 26,064,960,724.50/186,279.88
  6. Step 6: Final answer
    x = 139,923.65

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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.