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Finding the Fourth Proportional to 221,002.60, 330,726.30 and 202,340.20

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Solution

The fourth proportional to 221,002.60, 330,726.30 and 202,340.20 is: 302,798.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,002.60 : 330,726.30 = 202,340.20 : x
  2. Step 2: Convert to fraction form
    221,002.60/330,726.30 = 202,340.20/x
  3. Step 3: Cross multiply
    221,002.60x = 330,726.30 × 202,340.20
  4. Step 4: Simplify right side
    221,002.60x = 66,919,225,687.26
  5. Step 5: Solve for x
    x = 66,919,225,687.26/221,002.60
  6. Step 6: Final answer
    x = 302,798.36

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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.