Home / 209,266.28-313,650.20-145,742.48

Finding the Fourth Proportional to 209,266.28, 313,650.20 and 145,742.48

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Solution

The fourth proportional to 209,266.28, 313,650.20 and 145,742.48 is: 218,440.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,266.28 : 313,650.20 = 145,742.48 : x
  2. Step 2: Convert to fraction form
    209,266.28/313,650.20 = 145,742.48/x
  3. Step 3: Cross multiply
    209,266.28x = 313,650.20 × 145,742.48
  4. Step 4: Simplify right side
    209,266.28x = 45,712,157,121.82
  5. Step 5: Solve for x
    x = 45,712,157,121.82/209,266.28
  6. Step 6: Final answer
    x = 218,440.14

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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.