Home / 318,247.78-477,336.02-81,596.02

Finding the Fourth Proportional to 318,247.78, 477,336.02 and 81,596.02

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Solution

The fourth proportional to 318,247.78, 477,336.02 and 81,596.02 is: 122,384.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,247.78 : 477,336.02 = 81,596.02 : x
  2. Step 2: Convert to fraction form
    318,247.78/477,336.02 = 81,596.02/x
  3. Step 3: Cross multiply
    318,247.78x = 477,336.02 × 81,596.02
  4. Step 4: Simplify right side
    318,247.78x = 38,948,719,434.64
  5. Step 5: Solve for x
    x = 38,948,719,434.64/318,247.78
  6. Step 6: Final answer
    x = 122,384.89

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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.