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Finding the Fourth Proportional to 288,049.80, 432,074.70 and 254,224.20

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Solution

The fourth proportional to 288,049.80, 432,074.70 and 254,224.20 is: 381,336.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,049.80 : 432,074.70 = 254,224.20 : x
  2. Step 2: Convert to fraction form
    288,049.80/432,074.70 = 254,224.20/x
  3. Step 3: Cross multiply
    288,049.80x = 432,074.70 × 254,224.20
  4. Step 4: Simplify right side
    288,049.80x = 109,843,844,947.74
  5. Step 5: Solve for x
    x = 109,843,844,947.74/288,049.80
  6. Step 6: Final answer
    x = 381,336.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.