Home / 389,508.17-584,326.85-136,723.07

Finding the Fourth Proportional to 389,508.17, 584,326.85 and 136,723.07

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Solution

The fourth proportional to 389,508.17, 584,326.85 and 136,723.07 is: 205,107.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,508.17 : 584,326.85 = 136,723.07 : x
  2. Step 2: Convert to fraction form
    389,508.17/584,326.85 = 136,723.07/x
  3. Step 3: Cross multiply
    389,508.17x = 584,326.85 × 136,723.07
  4. Step 4: Simplify right side
    389,508.17x = 79,890,961,592.63
  5. Step 5: Solve for x
    x = 79,890,961,592.63/389,508.17
  6. Step 6: Final answer
    x = 205,107.28

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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.