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Finding the Fourth Proportional to 229,466.10, 316,670.27 and 138,838.71

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Solution

The fourth proportional to 229,466.10, 316,670.27 and 138,838.71 is: 191,601.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,466.10 : 316,670.27 = 138,838.71 : x
  2. Step 2: Convert to fraction form
    229,466.10/316,670.27 = 138,838.71/x
  3. Step 3: Cross multiply
    229,466.10x = 316,670.27 × 138,838.71
  4. Step 4: Simplify right side
    229,466.10x = 43,966,091,087.96
  5. Step 5: Solve for x
    x = 43,966,091,087.96/229,466.10
  6. Step 6: Final answer
    x = 191,601.68

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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.