Home / 389,557.49-584,369.53-136,815.95

Finding the Fourth Proportional to 389,557.49, 584,369.53 and 136,815.95

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Solution

The fourth proportional to 389,557.49, 584,369.53 and 136,815.95 is: 205,235.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,557.49 : 584,369.53 = 136,815.95 : x
  2. Step 2: Convert to fraction form
    389,557.49/584,369.53 = 136,815.95/x
  3. Step 3: Cross multiply
    389,557.49x = 584,369.53 × 136,815.95
  4. Step 4: Simplify right side
    389,557.49x = 79,951,073,516.89
  5. Step 5: Solve for x
    x = 79,951,073,516.89/389,557.49
  6. Step 6: Final answer
    x = 205,235.62

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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.