Home / 318,022.44-477,031.23-81,364.74

Finding the Fourth Proportional to 318,022.44, 477,031.23 and 81,364.74

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Solution

The fourth proportional to 318,022.44, 477,031.23 and 81,364.74 is: 122,046.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,022.44 : 477,031.23 = 81,364.74 : x
  2. Step 2: Convert to fraction form
    318,022.44/477,031.23 = 81,364.74/x
  3. Step 3: Cross multiply
    318,022.44x = 477,031.23 × 81,364.74
  4. Step 4: Simplify right side
    318,022.44x = 38,813,522,000.83
  5. Step 5: Solve for x
    x = 38,813,522,000.83/318,022.44
  6. Step 6: Final answer
    x = 122,046.49

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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.