Home / 308,868.75-426,246.08-172,899.27

Finding the Fourth Proportional to 308,868.75, 426,246.08 and 172,899.27

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Solution

The fourth proportional to 308,868.75, 426,246.08 and 172,899.27 is: 238,605.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,868.75 : 426,246.08 = 172,899.27 : x
  2. Step 2: Convert to fraction form
    308,868.75/426,246.08 = 172,899.27/x
  3. Step 3: Cross multiply
    308,868.75x = 426,246.08 × 172,899.27
  4. Step 4: Simplify right side
    308,868.75x = 73,697,635,207.87
  5. Step 5: Solve for x
    x = 73,697,635,207.87/308,868.75
  6. Step 6: Final answer
    x = 238,605.02

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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.