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Finding the Fourth Proportional to 229,323.54, 316,495.56 and 138,680.10

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Solution

The fourth proportional to 229,323.54, 316,495.56 and 138,680.10 is: 191,396.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,323.54 : 316,495.56 = 138,680.10 : x
  2. Step 2: Convert to fraction form
    229,323.54/316,495.56 = 138,680.10/x
  3. Step 3: Cross multiply
    229,323.54x = 316,495.56 × 138,680.10
  4. Step 4: Simplify right side
    229,323.54x = 43,891,635,910.36
  5. Step 5: Solve for x
    x = 43,891,635,910.36/229,323.54
  6. Step 6: Final answer
    x = 191,396.12

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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.