Home / 218,557.12-301,616.28-127,921.50

Finding the Fourth Proportional to 218,557.12, 301,616.28 and 127,921.50

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Solution

The fourth proportional to 218,557.12, 301,616.28 and 127,921.50 is: 176,536.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,557.12 : 301,616.28 = 127,921.50 : x
  2. Step 2: Convert to fraction form
    218,557.12/301,616.28 = 127,921.50/x
  3. Step 3: Cross multiply
    218,557.12x = 301,616.28 × 127,921.50
  4. Step 4: Simplify right side
    218,557.12x = 38,583,206,962.02
  5. Step 5: Solve for x
    x = 38,583,206,962.02/218,557.12
  6. Step 6: Final answer
    x = 176,536.03

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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.