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Finding the Fourth Proportional to 226,528.87, 312,611 and 124,560.90

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Solution

The fourth proportional to 226,528.87, 312,611 and 124,560.90 is: 171,894.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,528.87 : 312,611 = 124,560.90 : x
  2. Step 2: Convert to fraction form
    226,528.87/312,611 = 124,560.90/x
  3. Step 3: Cross multiply
    226,528.87x = 312,611 × 124,560.90
  4. Step 4: Simplify right side
    226,528.87x = 38,939,107,509.90
  5. Step 5: Solve for x
    x = 38,939,107,509.90/226,528.87
  6. Step 6: Final answer
    x = 171,894.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.