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Finding the Fourth Proportional to 290,561.84, 400,048.44 and 247,949.36

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Solution

The fourth proportional to 290,561.84, 400,048.44 and 247,949.36 is: 341,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,561.84 : 400,048.44 = 247,949.36 : x
  2. Step 2: Convert to fraction form
    290,561.84/400,048.44 = 247,949.36/x
  3. Step 3: Cross multiply
    290,561.84x = 400,048.44 × 247,949.36
  4. Step 4: Simplify right side
    290,561.84x = 99,191,754,667.00
  5. Step 5: Solve for x
    x = 99,191,754,667.00/290,561.84
  6. Step 6: Final answer
    x = 341,379.15

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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.