Home / 278,145.94-383,850.62-157,306.90

Finding the Fourth Proportional to 278,145.94, 383,850.62 and 157,306.90

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Solution

The fourth proportional to 278,145.94, 383,850.62 and 157,306.90 is: 217,088.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,145.94 : 383,850.62 = 157,306.90 : x
  2. Step 2: Convert to fraction form
    278,145.94/383,850.62 = 157,306.90/x
  3. Step 3: Cross multiply
    278,145.94x = 383,850.62 × 157,306.90
  4. Step 4: Simplify right side
    278,145.94x = 60,382,351,095.28
  5. Step 5: Solve for x
    x = 60,382,351,095.28/278,145.94
  6. Step 6: Final answer
    x = 217,088.74

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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.