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Finding the Fourth Proportional to 410,095.20, 615,315.60 and 223,240.80

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Solution

The fourth proportional to 410,095.20, 615,315.60 and 223,240.80 is: 334,955.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,095.20 : 615,315.60 = 223,240.80 : x
  2. Step 2: Convert to fraction form
    410,095.20/615,315.60 = 223,240.80/x
  3. Step 3: Cross multiply
    410,095.20x = 615,315.60 × 223,240.80
  4. Step 4: Simplify right side
    410,095.20x = 137,363,546,796.48
  5. Step 5: Solve for x
    x = 137,363,546,796.48/410,095.20
  6. Step 6: Final answer
    x = 334,955.27

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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.