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Finding the Fourth Proportional to 316,691.51, 437,029.88 and 180,768.56

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Solution

The fourth proportional to 316,691.51, 437,029.88 and 180,768.56 is: 249,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,691.51 : 437,029.88 = 180,768.56 : x
  2. Step 2: Convert to fraction form
    316,691.51/437,029.88 = 180,768.56/x
  3. Step 3: Cross multiply
    316,691.51x = 437,029.88 × 180,768.56
  4. Step 4: Simplify right side
    316,691.51x = 79,001,258,995.58
  5. Step 5: Solve for x
    x = 79,001,258,995.58/316,691.51
  6. Step 6: Final answer
    x = 249,458.09

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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.