Home / 497,144.80-745,717.20-142,170.40

Finding the Fourth Proportional to 497,144.80, 745,717.20 and 142,170.40

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Solution

The fourth proportional to 497,144.80, 745,717.20 and 142,170.40 is: 213,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,144.80 : 745,717.20 = 142,170.40 : x
  2. Step 2: Convert to fraction form
    497,144.80/745,717.20 = 142,170.40/x
  3. Step 3: Cross multiply
    497,144.80x = 745,717.20 × 142,170.40
  4. Step 4: Simplify right side
    497,144.80x = 106,018,912,610.88
  5. Step 5: Solve for x
    x = 106,018,912,610.88/497,144.80
  6. Step 6: Final answer
    x = 213,255.60

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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.