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Finding the Fourth Proportional to 329,038.70, 492,866.85 and 181,121.90

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Solution

The fourth proportional to 329,038.70, 492,866.85 and 181,121.90 is: 271,302.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,038.70 : 492,866.85 = 181,121.90 : x
  2. Step 2: Convert to fraction form
    329,038.70/492,866.85 = 181,121.90/x
  3. Step 3: Cross multiply
    329,038.70x = 492,866.85 × 181,121.90
  4. Step 4: Simplify right side
    329,038.70x = 89,268,980,319.02
  5. Step 5: Solve for x
    x = 89,268,980,319.02/329,038.70
  6. Step 6: Final answer
    x = 271,302.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.