Home / 324,911.20-487,280.40-100,271.20

Finding the Fourth Proportional to 324,911.20, 487,280.40 and 100,271.20

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Solution

The fourth proportional to 324,911.20, 487,280.40 and 100,271.20 is: 150,380.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,911.20 : 487,280.40 = 100,271.20 : x
  2. Step 2: Convert to fraction form
    324,911.20/487,280.40 = 100,271.20/x
  3. Step 3: Cross multiply
    324,911.20x = 487,280.40 × 100,271.20
  4. Step 4: Simplify right side
    324,911.20x = 48,860,190,444.48
  5. Step 5: Solve for x
    x = 48,860,190,444.48/324,911.20
  6. Step 6: Final answer
    x = 150,380.14

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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.