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Finding the Fourth Proportional to 271,977.96, 407,870.39 and 79,798.75

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Solution

The fourth proportional to 271,977.96, 407,870.39 and 79,798.75 is: 119,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,977.96 : 407,870.39 = 79,798.75 : x
  2. Step 2: Convert to fraction form
    271,977.96/407,870.39 = 79,798.75/x
  3. Step 3: Cross multiply
    271,977.96x = 407,870.39 × 79,798.75
  4. Step 4: Simplify right side
    271,977.96x = 32,547,545,244.66
  5. Step 5: Solve for x
    x = 32,547,545,244.66/271,977.96
  6. Step 6: Final answer
    x = 119,669.79

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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.