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Finding the Fourth Proportional to 349,405.46, 482,176.67 and 220,427.25

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Solution

The fourth proportional to 349,405.46, 482,176.67 and 220,427.25 is: 304,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,405.46 : 482,176.67 = 220,427.25 : x
  2. Step 2: Convert to fraction form
    349,405.46/482,176.67 = 220,427.25/x
  3. Step 3: Cross multiply
    349,405.46x = 482,176.67 × 220,427.25
  4. Step 4: Simplify right side
    349,405.46x = 106,284,877,382.26
  5. Step 5: Solve for x
    x = 106,284,877,382.26/349,405.46
  6. Step 6: Final answer
    x = 304,187.80

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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.