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Finding the Fourth Proportional to 221,006.60, 330,732.30 and 202,344.20

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Solution

The fourth proportional to 221,006.60, 330,732.30 and 202,344.20 is: 302,804.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,006.60 : 330,732.30 = 202,344.20 : x
  2. Step 2: Convert to fraction form
    221,006.60/330,732.30 = 202,344.20/x
  3. Step 3: Cross multiply
    221,006.60x = 330,732.30 × 202,344.20
  4. Step 4: Simplify right side
    221,006.60x = 66,921,762,657.66
  5. Step 5: Solve for x
    x = 66,921,762,657.66/221,006.60
  6. Step 6: Final answer
    x = 302,804.36

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1.5x scale

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.