Home / 331,469.40-497,276.10-121,107

Finding the Fourth Proportional to 331,469.40, 497,276.10 and 121,107

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Solution

The fourth proportional to 331,469.40, 497,276.10 and 121,107 is: 181,686.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,469.40 : 497,276.10 = 121,107 : x
  2. Step 2: Convert to fraction form
    331,469.40/497,276.10 = 121,107/x
  3. Step 3: Cross multiply
    331,469.40x = 497,276.10 × 121,107
  4. Step 4: Simplify right side
    331,469.40x = 60,223,616,642.70
  5. Step 5: Solve for x
    x = 60,223,616,642.70/331,469.40
  6. Step 6: Final answer
    x = 181,686.81

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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.