Home / 218,870.24-328,305.72-125,311.28

Finding the Fourth Proportional to 218,870.24, 328,305.72 and 125,311.28

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Solution

The fourth proportional to 218,870.24, 328,305.72 and 125,311.28 is: 187,967.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,870.24 : 328,305.72 = 125,311.28 : x
  2. Step 2: Convert to fraction form
    218,870.24/328,305.72 = 125,311.28/x
  3. Step 3: Cross multiply
    218,870.24x = 328,305.72 × 125,311.28
  4. Step 4: Simplify right side
    218,870.24x = 41,140,410,004.52
  5. Step 5: Solve for x
    x = 41,140,410,004.52/218,870.24
  6. Step 6: Final answer
    x = 187,967.13

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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.