Home / 382,496.18-527,862.58-221,320.06

Finding the Fourth Proportional to 382,496.18, 527,862.58 and 221,320.06

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Solution

The fourth proportional to 382,496.18, 527,862.58 and 221,320.06 is: 305,432.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,496.18 : 527,862.58 = 221,320.06 : x
  2. Step 2: Convert to fraction form
    382,496.18/527,862.58 = 221,320.06/x
  3. Step 3: Cross multiply
    382,496.18x = 527,862.58 × 221,320.06
  4. Step 4: Simplify right side
    382,496.18x = 116,826,576,004.40
  5. Step 5: Solve for x
    x = 116,826,576,004.40/382,496.18
  6. Step 6: Final answer
    x = 305,432.01

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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.