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Finding the Fourth Proportional to 229,453.77, 316,645.90 and 127,488.63

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Solution

The fourth proportional to 229,453.77, 316,645.90 and 127,488.63 is: 175,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,453.77 : 316,645.90 = 127,488.63 : x
  2. Step 2: Convert to fraction form
    229,453.77/316,645.90 = 127,488.63/x
  3. Step 3: Cross multiply
    229,453.77x = 316,645.90 × 127,488.63
  4. Step 4: Simplify right side
    229,453.77x = 40,368,751,986.12
  5. Step 5: Solve for x
    x = 40,368,751,986.12/229,453.77
  6. Step 6: Final answer
    x = 175,934.14

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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.