Home / 228,917.24-343,425.07-77,129.40

Finding the Fourth Proportional to 228,917.24, 343,425.07 and 77,129.40

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Solution

The fourth proportional to 228,917.24, 343,425.07 and 77,129.40 is: 115,710.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,917.24 : 343,425.07 = 77,129.40 : x
  2. Step 2: Convert to fraction form
    228,917.24/343,425.07 = 77,129.40/x
  3. Step 3: Cross multiply
    228,917.24x = 343,425.07 × 77,129.40
  4. Step 4: Simplify right side
    228,917.24x = 26,488,170,061.52
  5. Step 5: Solve for x
    x = 26,488,170,061.52/228,917.24
  6. Step 6: Final answer
    x = 115,710.68

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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.