Home / 218,627.10-301,726.86-127,977.60

Finding the Fourth Proportional to 218,627.10, 301,726.86 and 127,977.60

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Solution

The fourth proportional to 218,627.10, 301,726.86 and 127,977.60 is: 176,621.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,627.10 : 301,726.86 = 127,977.60 : x
  2. Step 2: Convert to fraction form
    218,627.10/301,726.86 = 127,977.60/x
  3. Step 3: Cross multiply
    218,627.10x = 301,726.86 × 127,977.60
  4. Step 4: Simplify right side
    218,627.10x = 38,614,279,398.34
  5. Step 5: Solve for x
    x = 38,614,279,398.34/218,627.10
  6. Step 6: Final answer
    x = 176,621.65

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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.