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Finding the Fourth Proportional to 229,193.94, 316,293.09 and 128,599.38

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Solution

The fourth proportional to 229,193.94, 316,293.09 and 128,599.38 is: 177,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,193.94 : 316,293.09 = 128,599.38 : x
  2. Step 2: Convert to fraction form
    229,193.94/316,293.09 = 128,599.38/x
  3. Step 3: Cross multiply
    229,193.94x = 316,293.09 × 128,599.38
  4. Step 4: Simplify right side
    229,193.94x = 40,675,095,272.28
  5. Step 5: Solve for x
    x = 40,675,095,272.28/229,193.94
  6. Step 6: Final answer
    x = 177,470.20

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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.