Home / 218,849.45-328,267.69-90,752.81

Finding the Fourth Proportional to 218,849.45, 328,267.69 and 90,752.81

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Solution

The fourth proportional to 218,849.45, 328,267.69 and 90,752.81 is: 136,126.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,849.45 : 328,267.69 = 90,752.81 : x
  2. Step 2: Convert to fraction form
    218,849.45/328,267.69 = 90,752.81/x
  3. Step 3: Cross multiply
    218,849.45x = 328,267.69 × 90,752.81
  4. Step 4: Simplify right side
    218,849.45x = 29,791,213,431.49
  5. Step 5: Solve for x
    x = 29,791,213,431.49/218,849.45
  6. Step 6: Final answer
    x = 136,126.52

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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.