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Finding the Fourth Proportional to 324,080.64, 485,421.12 and 316,149.12

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Solution

The fourth proportional to 324,080.64, 485,421.12 and 316,149.12 is: 473,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,080.64 : 485,421.12 = 316,149.12 : x
  2. Step 2: Convert to fraction form
    324,080.64/485,421.12 = 316,149.12/x
  3. Step 3: Cross multiply
    324,080.64x = 485,421.12 × 316,149.12
  4. Step 4: Simplify right side
    324,080.64x = 153,465,459,917.41
  5. Step 5: Solve for x
    x = 153,465,459,917.41/324,080.64
  6. Step 6: Final answer
    x = 473,540.97

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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.