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Finding the Fourth Proportional to 410,049.20, 615,075.24 and 199,506.80

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Solution

The fourth proportional to 410,049.20, 615,075.24 and 199,506.80 is: 299,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,049.20 : 615,075.24 = 199,506.80 : x
  2. Step 2: Convert to fraction form
    410,049.20/615,075.24 = 199,506.80/x
  3. Step 3: Cross multiply
    410,049.20x = 615,075.24 × 199,506.80
  4. Step 4: Simplify right side
    410,049.20x = 122,711,692,891.63
  5. Step 5: Solve for x
    x = 122,711,692,891.63/410,049.20
  6. Step 6: Final answer
    x = 299,260.90

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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.