Home / 283,226.72-390,863.19-154,158.95

Finding the Fourth Proportional to 283,226.72, 390,863.19 and 154,158.95

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Solution

The fourth proportional to 283,226.72, 390,863.19 and 154,158.95 is: 212,744.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,226.72 : 390,863.19 = 154,158.95 : x
  2. Step 2: Convert to fraction form
    283,226.72/390,863.19 = 154,158.95/x
  3. Step 3: Cross multiply
    283,226.72x = 390,863.19 × 154,158.95
  4. Step 4: Simplify right side
    283,226.72x = 60,255,059,170.41
  5. Step 5: Solve for x
    x = 60,255,059,170.41/283,226.72
  6. Step 6: Final answer
    x = 212,744.97

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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.