Home / 353,441.28-530,144.64-131,808

Finding the Fourth Proportional to 353,441.28, 530,144.64 and 131,808

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Solution

The fourth proportional to 353,441.28, 530,144.64 and 131,808 is: 197,705.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,441.28 : 530,144.64 = 131,808 : x
  2. Step 2: Convert to fraction form
    353,441.28/530,144.64 = 131,808/x
  3. Step 3: Cross multiply
    353,441.28x = 530,144.64 × 131,808
  4. Step 4: Simplify right side
    353,441.28x = 69,877,304,709.12
  5. Step 5: Solve for x
    x = 69,877,304,709.12/353,441.28
  6. Step 6: Final answer
    x = 197,705.56

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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.