Home / 641,255.40-961,883.10-167,988.60

Finding the Fourth Proportional to 641,255.40, 961,883.10 and 167,988.60

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Solution

The fourth proportional to 641,255.40, 961,883.10 and 167,988.60 is: 251,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,255.40 : 961,883.10 = 167,988.60 : x
  2. Step 2: Convert to fraction form
    641,255.40/961,883.10 = 167,988.60/x
  3. Step 3: Cross multiply
    641,255.40x = 961,883.10 × 167,988.60
  4. Step 4: Simplify right side
    641,255.40x = 161,585,395,332.66
  5. Step 5: Solve for x
    x = 161,585,395,332.66/641,255.40
  6. Step 6: Final answer
    x = 251,982.90

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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.