Home / 219,710.40-329,565.60-218,155.20

Finding the Fourth Proportional to 219,710.40, 329,565.60 and 218,155.20

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Solution

The fourth proportional to 219,710.40, 329,565.60 and 218,155.20 is: 327,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,710.40 : 329,565.60 = 218,155.20 : x
  2. Step 2: Convert to fraction form
    219,710.40/329,565.60 = 218,155.20/x
  3. Step 3: Cross multiply
    219,710.40x = 329,565.60 × 218,155.20
  4. Step 4: Simplify right side
    219,710.40x = 71,896,449,381.12
  5. Step 5: Solve for x
    x = 71,896,449,381.12/219,710.40
  6. Step 6: Final answer
    x = 327,232.80

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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.