Home / 389,868.84-584,857.80-137,182.68

Finding the Fourth Proportional to 389,868.84, 584,857.80 and 137,182.68

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Solution

The fourth proportional to 389,868.84, 584,857.80 and 137,182.68 is: 205,793.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,868.84 : 584,857.80 = 137,182.68 : x
  2. Step 2: Convert to fraction form
    389,868.84/584,857.80 = 137,182.68/x
  3. Step 3: Cross multiply
    389,868.84x = 584,857.80 × 137,182.68
  4. Step 4: Simplify right side
    389,868.84x = 80,232,360,422.90
  5. Step 5: Solve for x
    x = 80,232,360,422.90/389,868.84
  6. Step 6: Final answer
    x = 205,793.21

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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.