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Finding the Fourth Proportional to 300,557.79, 414,765.81 and 171,492.87

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Solution

The fourth proportional to 300,557.79, 414,765.81 and 171,492.87 is: 236,657.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,557.79 : 414,765.81 = 171,492.87 : x
  2. Step 2: Convert to fraction form
    300,557.79/414,765.81 = 171,492.87/x
  3. Step 3: Cross multiply
    300,557.79x = 414,765.81 × 171,492.87
  4. Step 4: Simplify right side
    300,557.79x = 71,129,379,134.77
  5. Step 5: Solve for x
    x = 71,129,379,134.77/300,557.79
  6. Step 6: Final answer
    x = 236,657.91

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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.