Home / 218,219.45-301,139.96-122,726.16

Finding the Fourth Proportional to 218,219.45, 301,139.96 and 122,726.16

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Solution

The fourth proportional to 218,219.45, 301,139.96 and 122,726.16 is: 169,360.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,219.45 : 301,139.96 = 122,726.16 : x
  2. Step 2: Convert to fraction form
    218,219.45/301,139.96 = 122,726.16/x
  3. Step 3: Cross multiply
    218,219.45x = 301,139.96 × 122,726.16
  4. Step 4: Simplify right side
    218,219.45x = 36,957,750,299.72
  5. Step 5: Solve for x
    x = 36,957,750,299.72/218,219.45
  6. Step 6: Final answer
    x = 169,360.48

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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.