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Finding the Fourth Proportional to 300,741.65, 414,970.73 and 171,621.17

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Solution

The fourth proportional to 300,741.65, 414,970.73 and 171,621.17 is: 236,807.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,741.65 : 414,970.73 = 171,621.17 : x
  2. Step 2: Convert to fraction form
    300,741.65/414,970.73 = 171,621.17/x
  3. Step 3: Cross multiply
    300,741.65x = 414,970.73 × 171,621.17
  4. Step 4: Simplify right side
    300,741.65x = 71,217,761,465.11
  5. Step 5: Solve for x
    x = 71,217,761,465.11/300,741.65
  6. Step 6: Final answer
    x = 236,807.11

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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.