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Finding the Fourth Proportional to 324,682.40, 487,023.60 and 147,535.40

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Solution

The fourth proportional to 324,682.40, 487,023.60 and 147,535.40 is: 221,303.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,682.40 : 487,023.60 = 147,535.40 : x
  2. Step 2: Convert to fraction form
    324,682.40/487,023.60 = 147,535.40/x
  3. Step 3: Cross multiply
    324,682.40x = 487,023.60 × 147,535.40
  4. Step 4: Simplify right side
    324,682.40x = 71,853,221,635.44
  5. Step 5: Solve for x
    x = 71,853,221,635.44/324,682.40
  6. Step 6: Final answer
    x = 221,303.10

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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.