Home / 279,278.12-418,854.06-79,594.22

Finding the Fourth Proportional to 279,278.12, 418,854.06 and 79,594.22

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Solution

The fourth proportional to 279,278.12, 418,854.06 and 79,594.22 is: 119,373.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,278.12 : 418,854.06 = 79,594.22 : x
  2. Step 2: Convert to fraction form
    279,278.12/418,854.06 = 79,594.22/x
  3. Step 3: Cross multiply
    279,278.12x = 418,854.06 × 79,594.22
  4. Step 4: Simplify right side
    279,278.12x = 33,338,362,199.53
  5. Step 5: Solve for x
    x = 33,338,362,199.53/279,278.12
  6. Step 6: Final answer
    x = 119,373.34

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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.