Home / 272,938.20-409,407.30-198,580.20

Finding the Fourth Proportional to 272,938.20, 409,407.30 and 198,580.20

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Solution

The fourth proportional to 272,938.20, 409,407.30 and 198,580.20 is: 297,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,938.20 : 409,407.30 = 198,580.20 : x
  2. Step 2: Convert to fraction form
    272,938.20/409,407.30 = 198,580.20/x
  3. Step 3: Cross multiply
    272,938.20x = 409,407.30 × 198,580.20
  4. Step 4: Simplify right side
    272,938.20x = 81,300,183,515.46
  5. Step 5: Solve for x
    x = 81,300,183,515.46/272,938.20
  6. Step 6: Final answer
    x = 297,870.30

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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.