Home / 343,815.46-515,726.73-103,931.33

Finding the Fourth Proportional to 343,815.46, 515,726.73 and 103,931.33

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Solution

The fourth proportional to 343,815.46, 515,726.73 and 103,931.33 is: 155,898.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,815.46 : 515,726.73 = 103,931.33 : x
  2. Step 2: Convert to fraction form
    343,815.46/515,726.73 = 103,931.33/x
  3. Step 3: Cross multiply
    343,815.46x = 515,726.73 × 103,931.33
  4. Step 4: Simplify right side
    343,815.46x = 53,600,162,386.82
  5. Step 5: Solve for x
    x = 53,600,162,386.82/343,815.46
  6. Step 6: Final answer
    x = 155,898.06

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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.