Home / 389,846.54-584,919.40-137,153.28

Finding the Fourth Proportional to 389,846.54, 584,919.40 and 137,153.28

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Solution

The fourth proportional to 389,846.54, 584,919.40 and 137,153.28 is: 205,782.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,846.54 : 584,919.40 = 137,153.28 : x
  2. Step 2: Convert to fraction form
    389,846.54/584,919.40 = 137,153.28/x
  3. Step 3: Cross multiply
    389,846.54x = 584,919.40 × 137,153.28
  4. Step 4: Simplify right side
    389,846.54x = 80,223,614,245.63
  5. Step 5: Solve for x
    x = 80,223,614,245.63/389,846.54
  6. Step 6: Final answer
    x = 205,782.55

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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.