Home / 317,846.30-476,768.98-81,189.04

Finding the Fourth Proportional to 317,846.30, 476,768.98 and 81,189.04

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Solution

The fourth proportional to 317,846.30, 476,768.98 and 81,189.04 is: 121,783.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,846.30 : 476,768.98 = 81,189.04 : x
  2. Step 2: Convert to fraction form
    317,846.30/476,768.98 = 81,189.04/x
  3. Step 3: Cross multiply
    317,846.30x = 476,768.98 × 81,189.04
  4. Step 4: Simplify right side
    317,846.30x = 38,708,415,787.98
  5. Step 5: Solve for x
    x = 38,708,415,787.98/317,846.30
  6. Step 6: Final answer
    x = 121,783.44

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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.