Home / 278,937.38-384,934.07-151,612.62

Finding the Fourth Proportional to 278,937.38, 384,934.07 and 151,612.62

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Solution

The fourth proportional to 278,937.38, 384,934.07 and 151,612.62 is: 209,225.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,937.38 : 384,934.07 = 151,612.62 : x
  2. Step 2: Convert to fraction form
    278,937.38/384,934.07 = 151,612.62/x
  3. Step 3: Cross multiply
    278,937.38x = 384,934.07 × 151,612.62
  4. Step 4: Simplify right side
    278,937.38x = 58,360,862,879.96
  5. Step 5: Solve for x
    x = 58,360,862,879.96/278,937.38
  6. Step 6: Final answer
    x = 209,225.68

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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.