Home / 245,369.11-368,053.75-76,902.51

Finding the Fourth Proportional to 245,369.11, 368,053.75 and 76,902.51

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Solution

The fourth proportional to 245,369.11, 368,053.75 and 76,902.51 is: 115,353.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,369.11 : 368,053.75 = 76,902.51 : x
  2. Step 2: Convert to fraction form
    245,369.11/368,053.75 = 76,902.51/x
  3. Step 3: Cross multiply
    245,369.11x = 368,053.75 × 76,902.51
  4. Step 4: Simplify right side
    245,369.11x = 28,304,255,761.65
  5. Step 5: Solve for x
    x = 28,304,255,761.65/245,369.11
  6. Step 6: Final answer
    x = 115,353.79

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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.