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Finding the Fourth Proportional to 306,722.65, 423,233.71 and 170,737.72

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Solution

The fourth proportional to 306,722.65, 423,233.71 and 170,737.72 is: 235,593.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,722.65 : 423,233.71 = 170,737.72 : x
  2. Step 2: Convert to fraction form
    306,722.65/423,233.71 = 170,737.72/x
  3. Step 3: Cross multiply
    306,722.65x = 423,233.71 × 170,737.72
  4. Step 4: Simplify right side
    306,722.65x = 72,261,959,568.30
  5. Step 5: Solve for x
    x = 72,261,959,568.30/306,722.65
  6. Step 6: Final answer
    x = 235,593.82

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1.5x scale

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.