Home / 348,726.45-522,960.08-138,320.85

Finding the Fourth Proportional to 348,726.45, 522,960.08 and 138,320.85

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Solution

The fourth proportional to 348,726.45, 522,960.08 and 138,320.85 is: 207,429.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,726.45 : 522,960.08 = 138,320.85 : x
  2. Step 2: Convert to fraction form
    348,726.45/522,960.08 = 138,320.85/x
  3. Step 3: Cross multiply
    348,726.45x = 522,960.08 × 138,320.85
  4. Step 4: Simplify right side
    348,726.45x = 72,336,282,090.06
  5. Step 5: Solve for x
    x = 72,336,282,090.06/348,726.45
  6. Step 6: Final answer
    x = 207,429.87

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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.