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Finding the Fourth Proportional to 266,741.40, 400,112.10 and 247,301.40

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Solution

The fourth proportional to 266,741.40, 400,112.10 and 247,301.40 is: 370,952.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,741.40 : 400,112.10 = 247,301.40 : x
  2. Step 2: Convert to fraction form
    266,741.40/400,112.10 = 247,301.40/x
  3. Step 3: Cross multiply
    266,741.40x = 400,112.10 × 247,301.40
  4. Step 4: Simplify right side
    266,741.40x = 98,948,282,486.94
  5. Step 5: Solve for x
    x = 98,948,282,486.94/266,741.40
  6. Step 6: Final answer
    x = 370,952.10

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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.