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Finding the Fourth Proportional to 224,293.99, 309,573.73 and 128,853.31

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Solution

The fourth proportional to 224,293.99, 309,573.73 and 128,853.31 is: 177,845.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,293.99 : 309,573.73 = 128,853.31 : x
  2. Step 2: Convert to fraction form
    224,293.99/309,573.73 = 128,853.31/x
  3. Step 3: Cross multiply
    224,293.99x = 309,573.73 × 128,853.31
  4. Step 4: Simplify right side
    224,293.99x = 39,889,598,251.68
  5. Step 5: Solve for x
    x = 39,889,598,251.68/224,293.99
  6. Step 6: Final answer
    x = 177,845.15

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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.