Home / 389,225.39-584,097.75-136,505.66

Finding the Fourth Proportional to 389,225.39, 584,097.75 and 136,505.66

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Solution

The fourth proportional to 389,225.39, 584,097.75 and 136,505.66 is: 204,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,225.39 : 584,097.75 = 136,505.66 : x
  2. Step 2: Convert to fraction form
    389,225.39/584,097.75 = 136,505.66/x
  3. Step 3: Cross multiply
    389,225.39x = 584,097.75 × 136,505.66
  4. Step 4: Simplify right side
    389,225.39x = 79,732,645,947.78
  5. Step 5: Solve for x
    x = 79,732,645,947.78/389,225.39
  6. Step 6: Final answer
    x = 204,849.55

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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.