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Finding the Fourth Proportional to 221,260.40, 331,890.60 and 181,894.40

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Solution

The fourth proportional to 221,260.40, 331,890.60 and 181,894.40 is: 272,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,260.40 : 331,890.60 = 181,894.40 : x
  2. Step 2: Convert to fraction form
    221,260.40/331,890.60 = 181,894.40/x
  3. Step 3: Cross multiply
    221,260.40x = 331,890.60 × 181,894.40
  4. Step 4: Simplify right side
    221,260.40x = 60,369,041,552.64
  5. Step 5: Solve for x
    x = 60,369,041,552.64/221,260.40
  6. Step 6: Final answer
    x = 272,841.60

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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.