Home / 218,412.31-301,359.13-122,884.15

Finding the Fourth Proportional to 218,412.31, 301,359.13 and 122,884.15

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Solution

The fourth proportional to 218,412.31, 301,359.13 and 122,884.15 is: 169,552.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,412.31 : 301,359.13 = 122,884.15 : x
  2. Step 2: Convert to fraction form
    218,412.31/301,359.13 = 122,884.15/x
  3. Step 3: Cross multiply
    218,412.31x = 301,359.13 × 122,884.15
  4. Step 4: Simplify right side
    218,412.31x = 37,032,260,534.79
  5. Step 5: Solve for x
    x = 37,032,260,534.79/218,412.31
  6. Step 6: Final answer
    x = 169,552.08

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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.