Home / 382,320.18-527,629.44-212,579.82

Finding the Fourth Proportional to 382,320.18, 527,629.44 and 212,579.82

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Solution

The fourth proportional to 382,320.18, 527,629.44 and 212,579.82 is: 293,375.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,320.18 : 527,629.44 = 212,579.82 : x
  2. Step 2: Convert to fraction form
    382,320.18/527,629.44 = 212,579.82/x
  3. Step 3: Cross multiply
    382,320.18x = 527,629.44 × 212,579.82
  4. Step 4: Simplify right side
    382,320.18x = 112,163,371,381.90
  5. Step 5: Solve for x
    x = 112,163,371,381.90/382,320.18
  6. Step 6: Final answer
    x = 293,375.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.