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Finding the Fourth Proportional to 300,474.72, 450,726.66 and 247,788

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Solution

The fourth proportional to 300,474.72, 450,726.66 and 247,788 is: 371,694.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,474.72 : 450,726.66 = 247,788 : x
  2. Step 2: Convert to fraction form
    300,474.72/450,726.66 = 247,788/x
  3. Step 3: Cross multiply
    300,474.72x = 450,726.66 × 247,788
  4. Step 4: Simplify right side
    300,474.72x = 111,684,657,628.08
  5. Step 5: Solve for x
    x = 111,684,657,628.08/300,474.72
  6. Step 6: Final answer
    x = 371,694.02

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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.