Home / 498,100.90-747,510.36-198,408.10

Finding the Fourth Proportional to 498,100.90, 747,510.36 and 198,408.10

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Solution

The fourth proportional to 498,100.90, 747,510.36 and 198,408.10 is: 297,755.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,100.90 : 747,510.36 = 198,408.10 : x
  2. Step 2: Convert to fraction form
    498,100.90/747,510.36 = 198,408.10/x
  3. Step 3: Cross multiply
    498,100.90x = 747,510.36 × 198,408.10
  4. Step 4: Simplify right side
    498,100.90x = 148,312,110,257.92
  5. Step 5: Solve for x
    x = 148,312,110,257.92/498,100.90
  6. Step 6: Final answer
    x = 297,755.15

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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.