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Finding the Fourth Proportional to 356,676.54, 492,263.90 and 220,754.08

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Solution

The fourth proportional to 356,676.54, 492,263.90 and 220,754.08 is: 304,671.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,676.54 : 492,263.90 = 220,754.08 : x
  2. Step 2: Convert to fraction form
    356,676.54/492,263.90 = 220,754.08/x
  3. Step 3: Cross multiply
    356,676.54x = 492,263.90 × 220,754.08
  4. Step 4: Simplify right side
    356,676.54x = 108,669,264,361.71
  5. Step 5: Solve for x
    x = 108,669,264,361.71/356,676.54
  6. Step 6: Final answer
    x = 304,671.75

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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.