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Finding the Fourth Proportional to 218,344.90, 301,355.64 and 127,695.46

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Solution

The fourth proportional to 218,344.90, 301,355.64 and 127,695.46 is: 176,242.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,344.90 : 301,355.64 = 127,695.46 : x
  2. Step 2: Convert to fraction form
    218,344.90/301,355.64 = 127,695.46/x
  3. Step 3: Cross multiply
    218,344.90x = 301,355.64 × 127,695.46
  4. Step 4: Simplify right side
    218,344.90x = 38,481,747,073.39
  5. Step 5: Solve for x
    x = 38,481,747,073.39/218,344.90
  6. Step 6: Final answer
    x = 176,242.94

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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.