Home / 306,099.10-459,148.65-221,680.90

Finding the Fourth Proportional to 306,099.10, 459,148.65 and 221,680.90

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Solution

The fourth proportional to 306,099.10, 459,148.65 and 221,680.90 is: 332,521.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,099.10 : 459,148.65 = 221,680.90 : x
  2. Step 2: Convert to fraction form
    306,099.10/459,148.65 = 221,680.90/x
  3. Step 3: Cross multiply
    306,099.10x = 459,148.65 × 221,680.90
  4. Step 4: Simplify right side
    306,099.10x = 101,784,485,965.79
  5. Step 5: Solve for x
    x = 101,784,485,965.79/306,099.10
  6. Step 6: Final answer
    x = 332,521.35

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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.