Home / 278,324.73-384,088.23-157,463.55

Finding the Fourth Proportional to 278,324.73, 384,088.23 and 157,463.55

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Solution

The fourth proportional to 278,324.73, 384,088.23 and 157,463.55 is: 217,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,324.73 : 384,088.23 = 157,463.55 : x
  2. Step 2: Convert to fraction form
    278,324.73/384,088.23 = 157,463.55/x
  3. Step 3: Cross multiply
    278,324.73x = 384,088.23 × 157,463.55
  4. Step 4: Simplify right side
    278,324.73x = 60,479,896,209.02
  5. Step 5: Solve for x
    x = 60,479,896,209.02/278,324.73
  6. Step 6: Final answer
    x = 217,299.76

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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.