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Finding the Fourth Proportional to 353,295.65, 487,637.33 and 200,424.96

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Solution

The fourth proportional to 353,295.65, 487,637.33 and 200,424.96 is: 276,637.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,295.65 : 487,637.33 = 200,424.96 : x
  2. Step 2: Convert to fraction form
    353,295.65/487,637.33 = 200,424.96/x
  3. Step 3: Cross multiply
    353,295.65x = 487,637.33 × 200,424.96
  4. Step 4: Simplify right side
    353,295.65x = 97,734,691,357.63
  5. Step 5: Solve for x
    x = 97,734,691,357.63/353,295.65
  6. Step 6: Final answer
    x = 276,637.12

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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.