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Finding the Fourth Proportional to 221,295.40, 331,943.10 and 151,311.40

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Solution

The fourth proportional to 221,295.40, 331,943.10 and 151,311.40 is: 226,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,295.40 : 331,943.10 = 151,311.40 : x
  2. Step 2: Convert to fraction form
    221,295.40/331,943.10 = 151,311.40/x
  3. Step 3: Cross multiply
    221,295.40x = 331,943.10 × 151,311.40
  4. Step 4: Simplify right side
    221,295.40x = 50,226,775,181.34
  5. Step 5: Solve for x
    x = 50,226,775,181.34/221,295.40
  6. Step 6: Final answer
    x = 226,967.10

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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.