Home / 288,819.04-398,449.32-225,046.12

Finding the Fourth Proportional to 288,819.04, 398,449.32 and 225,046.12

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Solution

The fourth proportional to 288,819.04, 398,449.32 and 225,046.12 is: 310,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,819.04 : 398,449.32 = 225,046.12 : x
  2. Step 2: Convert to fraction form
    288,819.04/398,449.32 = 225,046.12/x
  3. Step 3: Cross multiply
    288,819.04x = 398,449.32 × 225,046.12
  4. Step 4: Simplify right side
    288,819.04x = 89,669,473,482.64
  5. Step 5: Solve for x
    x = 89,669,473,482.64/288,819.04
  6. Step 6: Final answer
    x = 310,469.40

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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.