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Finding the Fourth Proportional to 306,951.95, 423,577.15 and 169,126.27

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Solution

The fourth proportional to 306,951.95, 423,577.15 and 169,126.27 is: 233,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,951.95 : 423,577.15 = 169,126.27 : x
  2. Step 2: Convert to fraction form
    306,951.95/423,577.15 = 169,126.27/x
  3. Step 3: Cross multiply
    306,951.95x = 423,577.15 × 169,126.27
  4. Step 4: Simplify right side
    306,951.95x = 71,638,021,954.97
  5. Step 5: Solve for x
    x = 71,638,021,954.97/306,951.95
  6. Step 6: Final answer
    x = 233,385.13

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1.5x scale

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.