Home / 664,080.80-995,516.40-243,255.20

Finding the Fourth Proportional to 664,080.80, 995,516.40 and 243,255.20

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Solution

The fourth proportional to 664,080.80, 995,516.40 and 243,255.20 is: 364,661.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,080.80 : 995,516.40 = 243,255.20 : x
  2. Step 2: Convert to fraction form
    664,080.80/995,516.40 = 243,255.20/x
  3. Step 3: Cross multiply
    664,080.80x = 995,516.40 × 243,255.20
  4. Step 4: Simplify right side
    664,080.80x = 242,164,540,985.28
  5. Step 5: Solve for x
    x = 242,164,540,985.28/664,080.80
  6. Step 6: Final answer
    x = 364,661.26

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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.