Home / 445,853.20-615,277.38-254,870.86

Finding the Fourth Proportional to 445,853.20, 615,277.38 and 254,870.86

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Solution

The fourth proportional to 445,853.20, 615,277.38 and 254,870.86 is: 351,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,853.20 : 615,277.38 = 254,870.86 : x
  2. Step 2: Convert to fraction form
    445,853.20/615,277.38 = 254,870.86/x
  3. Step 3: Cross multiply
    445,853.20x = 615,277.38 × 254,870.86
  4. Step 4: Simplify right side
    445,853.20x = 156,816,274,979.15
  5. Step 5: Solve for x
    x = 156,816,274,979.15/445,853.20
  6. Step 6: Final answer
    x = 351,721.77

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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.