Home / 204,218.40-306,619.20-159,895.20

Finding the Fourth Proportional to 204,218.40, 306,619.20 and 159,895.20

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Solution

The fourth proportional to 204,218.40, 306,619.20 and 159,895.20 is: 240,071.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,218.40 : 306,619.20 = 159,895.20 : x
  2. Step 2: Convert to fraction form
    204,218.40/306,619.20 = 159,895.20/x
  3. Step 3: Cross multiply
    204,218.40x = 306,619.20 × 159,895.20
  4. Step 4: Simplify right side
    204,218.40x = 49,026,938,307.84
  5. Step 5: Solve for x
    x = 49,026,938,307.84/204,218.40
  6. Step 6: Final answer
    x = 240,071.11

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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.