Home / 218,116.32-301,537.28-216,120.48

Finding the Fourth Proportional to 218,116.32, 301,537.28 and 216,120.48

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Solution

The fourth proportional to 218,116.32, 301,537.28 and 216,120.48 is: 298,778.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,116.32 : 301,537.28 = 216,120.48 : x
  2. Step 2: Convert to fraction form
    218,116.32/301,537.28 = 216,120.48/x
  3. Step 3: Cross multiply
    218,116.32x = 301,537.28 × 216,120.48
  4. Step 4: Simplify right side
    218,116.32x = 65,168,381,691.49
  5. Step 5: Solve for x
    x = 65,168,381,691.49/218,116.32
  6. Step 6: Final answer
    x = 298,778.11

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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.