Home / 215,005.60-322,604.40-74,864.80

Finding the Fourth Proportional to 215,005.60, 322,604.40 and 74,864.80

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Solution

The fourth proportional to 215,005.60, 322,604.40 and 74,864.80 is: 112,330.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,005.60 : 322,604.40 = 74,864.80 : x
  2. Step 2: Convert to fraction form
    215,005.60/322,604.40 = 74,864.80/x
  3. Step 3: Cross multiply
    215,005.60x = 322,604.40 × 74,864.80
  4. Step 4: Simplify right side
    215,005.60x = 24,151,713,885.12
  5. Step 5: Solve for x
    x = 24,151,713,885.12/215,005.60
  6. Step 6: Final answer
    x = 112,330.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.