Home / 309,817.80-427,566.24-173,844.72

Finding the Fourth Proportional to 309,817.80, 427,566.24 and 173,844.72

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Solution

The fourth proportional to 309,817.80, 427,566.24 and 173,844.72 is: 239,915.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,817.80 : 427,566.24 = 173,844.72 : x
  2. Step 2: Convert to fraction form
    309,817.80/427,566.24 = 173,844.72/x
  3. Step 3: Cross multiply
    309,817.80x = 427,566.24 × 173,844.72
  4. Step 4: Simplify right side
    309,817.80x = 74,330,133,274.25
  5. Step 5: Solve for x
    x = 74,330,133,274.25/309,817.80
  6. Step 6: Final answer
    x = 239,915.63

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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.