Home / 218,833.13-301,989.78-118,231.13

Finding the Fourth Proportional to 218,833.13, 301,989.78 and 118,231.13

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Solution

The fourth proportional to 218,833.13, 301,989.78 and 118,231.13 is: 163,158.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,833.13 : 301,989.78 = 118,231.13 : x
  2. Step 2: Convert to fraction form
    218,833.13/301,989.78 = 118,231.13/x
  3. Step 3: Cross multiply
    218,833.13x = 301,989.78 × 118,231.13
  4. Step 4: Simplify right side
    218,833.13x = 35,704,591,427.90
  5. Step 5: Solve for x
    x = 35,704,591,427.90/218,833.13
  6. Step 6: Final answer
    x = 163,158.99

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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.