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Finding the Fourth Proportional to 229,661.43, 316,932.45 and 127,683.64

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Solution

The fourth proportional to 229,661.43, 316,932.45 and 127,683.64 is: 176,203.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,661.43 : 316,932.45 = 127,683.64 : x
  2. Step 2: Convert to fraction form
    229,661.43/316,932.45 = 127,683.64/x
  3. Step 3: Cross multiply
    229,661.43x = 316,932.45 × 127,683.64
  4. Step 4: Simplify right side
    229,661.43x = 40,467,088,767.47
  5. Step 5: Solve for x
    x = 40,467,088,767.47/229,661.43
  6. Step 6: Final answer
    x = 176,203.25

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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.