Home / 389,943.39-584,915.07-140,625.39

Finding the Fourth Proportional to 389,943.39, 584,915.07 and 140,625.39

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Solution

The fourth proportional to 389,943.39, 584,915.07 and 140,625.39 is: 210,938.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,943.39 : 584,915.07 = 140,625.39 : x
  2. Step 2: Convert to fraction form
    389,943.39/584,915.07 = 140,625.39/x
  3. Step 3: Cross multiply
    389,943.39x = 584,915.07 × 140,625.39
  4. Step 4: Simplify right side
    389,943.39x = 82,253,909,835.63
  5. Step 5: Solve for x
    x = 82,253,909,835.63/389,943.39
  6. Step 6: Final answer
    x = 210,938.08

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1.5x scale

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.