Home / 231,221.16-346,859.52-81,430.50

Finding the Fourth Proportional to 231,221.16, 346,859.52 and 81,430.50

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Solution

The fourth proportional to 231,221.16, 346,859.52 and 81,430.50 is: 122,155.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,221.16 : 346,859.52 = 81,430.50 : x
  2. Step 2: Convert to fraction form
    231,221.16/346,859.52 = 81,430.50/x
  3. Step 3: Cross multiply
    231,221.16x = 346,859.52 × 81,430.50
  4. Step 4: Simplify right side
    231,221.16x = 28,244,944,143.36
  5. Step 5: Solve for x
    x = 28,244,944,143.36/231,221.16
  6. Step 6: Final answer
    x = 122,155.53

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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.