Home / 218,923.04-328,387.80-144,519.68

Finding the Fourth Proportional to 218,923.04, 328,387.80 and 144,519.68

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Solution

The fourth proportional to 218,923.04, 328,387.80 and 144,519.68 is: 216,781.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,923.04 : 328,387.80 = 144,519.68 : x
  2. Step 2: Convert to fraction form
    218,923.04/328,387.80 = 144,519.68/x
  3. Step 3: Cross multiply
    218,923.04x = 328,387.80 × 144,519.68
  4. Step 4: Simplify right side
    218,923.04x = 47,458,499,771.90
  5. Step 5: Solve for x
    x = 47,458,499,771.90/218,923.04
  6. Step 6: Final answer
    x = 216,781.66

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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.