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Finding the Fourth Proportional to 229,387.77, 316,445.25 and 161,442.45

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Solution

The fourth proportional to 229,387.77, 316,445.25 and 161,442.45 is: 222,713.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,387.77 : 316,445.25 = 161,442.45 : x
  2. Step 2: Convert to fraction form
    229,387.77/316,445.25 = 161,442.45/x
  3. Step 3: Cross multiply
    229,387.77x = 316,445.25 × 161,442.45
  4. Step 4: Simplify right side
    229,387.77x = 51,087,696,450.86
  5. Step 5: Solve for x
    x = 51,087,696,450.86/229,387.77
  6. Step 6: Final answer
    x = 222,713.25

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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.