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Finding the Fourth Proportional to 324,785.76, 487,134.18 and 97,078.20

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Solution

The fourth proportional to 324,785.76, 487,134.18 and 97,078.20 is: 145,604.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,785.76 : 487,134.18 = 97,078.20 : x
  2. Step 2: Convert to fraction form
    324,785.76/487,134.18 = 97,078.20/x
  3. Step 3: Cross multiply
    324,785.76x = 487,134.18 × 97,078.20
  4. Step 4: Simplify right side
    324,785.76x = 47,290,109,352.88
  5. Step 5: Solve for x
    x = 47,290,109,352.88/324,785.76
  6. Step 6: Final answer
    x = 145,604.01

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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.