Home / 434,942.11-652,507-131,311.06

Finding the Fourth Proportional to 434,942.11, 652,507 and 131,311.06

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Solution

The fourth proportional to 434,942.11, 652,507 and 131,311.06 is: 196,994.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,942.11 : 652,507 = 131,311.06 : x
  2. Step 2: Convert to fraction form
    434,942.11/652,507 = 131,311.06/x
  3. Step 3: Cross multiply
    434,942.11x = 652,507 × 131,311.06
  4. Step 4: Simplify right side
    434,942.11x = 85,681,385,827.42
  5. Step 5: Solve for x
    x = 85,681,385,827.42/434,942.11
  6. Step 6: Final answer
    x = 196,994.92

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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.