Home / 309,861.02-427,583.13-173,876.06

Finding the Fourth Proportional to 309,861.02, 427,583.13 and 173,876.06

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Solution

The fourth proportional to 309,861.02, 427,583.13 and 173,876.06 is: 239,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,861.02 : 427,583.13 = 173,876.06 : x
  2. Step 2: Convert to fraction form
    309,861.02/427,583.13 = 173,876.06/x
  3. Step 3: Cross multiply
    309,861.02x = 427,583.13 × 173,876.06
  4. Step 4: Simplify right side
    309,861.02x = 74,346,469,966.87
  5. Step 5: Solve for x
    x = 74,346,469,966.87/309,861.02
  6. Step 6: Final answer
    x = 239,934.89

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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.