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Finding the Fourth Proportional to 317,963.70, 438,814.35 and 182,040.30

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Solution

The fourth proportional to 317,963.70, 438,814.35 and 182,040.30 is: 251,229.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,963.70 : 438,814.35 = 182,040.30 : x
  2. Step 2: Convert to fraction form
    317,963.70/438,814.35 = 182,040.30/x
  3. Step 3: Cross multiply
    317,963.70x = 438,814.35 × 182,040.30
  4. Step 4: Simplify right side
    317,963.70x = 79,881,895,918.31
  5. Step 5: Solve for x
    x = 79,881,895,918.31/317,963.70
  6. Step 6: Final answer
    x = 251,229.61

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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.