Home / 220,295.12-304,013.88-155,879.84

Finding the Fourth Proportional to 220,295.12, 304,013.88 and 155,879.84

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Solution

The fourth proportional to 220,295.12, 304,013.88 and 155,879.84 is: 215,118.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,295.12 : 304,013.88 = 155,879.84 : x
  2. Step 2: Convert to fraction form
    220,295.12/304,013.88 = 155,879.84/x
  3. Step 3: Cross multiply
    220,295.12x = 304,013.88 × 155,879.84
  4. Step 4: Simplify right side
    220,295.12x = 47,389,634,972.18
  5. Step 5: Solve for x
    x = 47,389,634,972.18/220,295.12
  6. Step 6: Final answer
    x = 215,118.86

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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.