Home / 269,318.90-403,988.56-100,821.50

Finding the Fourth Proportional to 269,318.90, 403,988.56 and 100,821.50

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Solution

The fourth proportional to 269,318.90, 403,988.56 and 100,821.50 is: 151,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,318.90 : 403,988.56 = 100,821.50 : x
  2. Step 2: Convert to fraction form
    269,318.90/403,988.56 = 100,821.50/x
  3. Step 3: Cross multiply
    269,318.90x = 403,988.56 × 100,821.50
  4. Step 4: Simplify right side
    269,318.90x = 40,730,732,602.04
  5. Step 5: Solve for x
    x = 40,730,732,602.04/269,318.90
  6. Step 6: Final answer
    x = 151,236.07

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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.