Home / 218,718.10-328,077.15-148,215.70

Finding the Fourth Proportional to 218,718.10, 328,077.15 and 148,215.70

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Solution

The fourth proportional to 218,718.10, 328,077.15 and 148,215.70 is: 222,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,718.10 : 328,077.15 = 148,215.70 : x
  2. Step 2: Convert to fraction form
    218,718.10/328,077.15 = 148,215.70/x
  3. Step 3: Cross multiply
    218,718.10x = 328,077.15 × 148,215.70
  4. Step 4: Simplify right side
    218,718.10x = 48,626,184,441.26
  5. Step 5: Solve for x
    x = 48,626,184,441.26/218,718.10
  6. Step 6: Final answer
    x = 222,323.55

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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.