Home / 318,209.27-477,446.09-128,803.52

Finding the Fourth Proportional to 318,209.27, 477,446.09 and 128,803.52

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Solution

The fourth proportional to 318,209.27, 477,446.09 and 128,803.52 is: 193,258.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,209.27 : 477,446.09 = 128,803.52 : x
  2. Step 2: Convert to fraction form
    318,209.27/477,446.09 = 128,803.52/x
  3. Step 3: Cross multiply
    318,209.27x = 477,446.09 × 128,803.52
  4. Step 4: Simplify right side
    318,209.27x = 61,496,737,551.83
  5. Step 5: Solve for x
    x = 61,496,737,551.83/318,209.27
  6. Step 6: Final answer
    x = 193,258.79

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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.