Home / 389,513.31-584,525.25-136,787.19

Finding the Fourth Proportional to 389,513.31, 584,525.25 and 136,787.19

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Solution

The fourth proportional to 389,513.31, 584,525.25 and 136,787.19 is: 205,270.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,513.31 : 584,525.25 = 136,787.19 : x
  2. Step 2: Convert to fraction form
    389,513.31/584,525.25 = 136,787.19/x
  3. Step 3: Cross multiply
    389,513.31x = 584,525.25 × 136,787.19
  4. Step 4: Simplify right side
    389,513.31x = 79,955,566,431.55
  5. Step 5: Solve for x
    x = 79,955,566,431.55/389,513.31
  6. Step 6: Final answer
    x = 205,270.43

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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.