Home / 324,629.60-487,090.20-147,045.20

Finding the Fourth Proportional to 324,629.60, 487,090.20 and 147,045.20

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Solution

The fourth proportional to 324,629.60, 487,090.20 and 147,045.20 is: 220,633.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,629.60 : 487,090.20 = 147,045.20 : x
  2. Step 2: Convert to fraction form
    324,629.60/487,090.20 = 147,045.20/x
  3. Step 3: Cross multiply
    324,629.60x = 487,090.20 × 147,045.20
  4. Step 4: Simplify right side
    324,629.60x = 71,624,275,877.04
  5. Step 5: Solve for x
    x = 71,624,275,877.04/324,629.60
  6. Step 6: Final answer
    x = 220,633.84

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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.