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Finding the Fourth Proportional to 224,289.63, 309,519.63 and 123,687.63

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Solution

The fourth proportional to 224,289.63, 309,519.63 and 123,687.63 is: 170,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,289.63 : 309,519.63 = 123,687.63 : x
  2. Step 2: Convert to fraction form
    224,289.63/309,519.63 = 123,687.63/x
  3. Step 3: Cross multiply
    224,289.63x = 309,519.63 × 123,687.63
  4. Step 4: Simplify right side
    224,289.63x = 38,283,749,473.18
  5. Step 5: Solve for x
    x = 38,283,749,473.18/224,289.63
  6. Step 6: Final answer
    x = 170,688.90

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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.