Home / 348,721.45-522,952.58-138,315.85

Finding the Fourth Proportional to 348,721.45, 522,952.58 and 138,315.85

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Solution

The fourth proportional to 348,721.45, 522,952.58 and 138,315.85 is: 207,422.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,721.45 : 522,952.58 = 138,315.85 : x
  2. Step 2: Convert to fraction form
    348,721.45/522,952.58 = 138,315.85/x
  3. Step 3: Cross multiply
    348,721.45x = 522,952.58 × 138,315.85
  4. Step 4: Simplify right side
    348,721.45x = 72,332,629,920.81
  5. Step 5: Solve for x
    x = 72,332,629,920.81/348,721.45
  6. Step 6: Final answer
    x = 207,422.37

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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.