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Finding the Fourth Proportional to 410,050.76, 615,253.71 and 220,289.72

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Solution

The fourth proportional to 410,050.76, 615,253.71 and 220,289.72 is: 330,529.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,050.76 : 615,253.71 = 220,289.72 : x
  2. Step 2: Convert to fraction form
    410,050.76/615,253.71 = 220,289.72/x
  3. Step 3: Cross multiply
    410,050.76x = 615,253.71 × 220,289.72
  4. Step 4: Simplify right side
    410,050.76x = 135,534,067,504.86
  5. Step 5: Solve for x
    x = 135,534,067,504.86/410,050.76
  6. Step 6: Final answer
    x = 330,529.98

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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.