Home / 218,275.11-301,215.20-127,684.71

Finding the Fourth Proportional to 218,275.11, 301,215.20 and 127,684.71

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Solution

The fourth proportional to 218,275.11, 301,215.20 and 127,684.71 is: 176,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,275.11 : 301,215.20 = 127,684.71 : x
  2. Step 2: Convert to fraction form
    218,275.11/301,215.20 = 127,684.71/x
  3. Step 3: Cross multiply
    218,275.11x = 301,215.20 × 127,684.71
  4. Step 4: Simplify right side
    218,275.11x = 38,460,574,821.17
  5. Step 5: Solve for x
    x = 38,460,574,821.17/218,275.11
  6. Step 6: Final answer
    x = 176,202.29

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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.