Home / 291,294.12-436,964.76-80,932.08

Finding the Fourth Proportional to 291,294.12, 436,964.76 and 80,932.08

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Solution

The fourth proportional to 291,294.12, 436,964.76 and 80,932.08 is: 121,404.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,294.12 : 436,964.76 = 80,932.08 : x
  2. Step 2: Convert to fraction form
    291,294.12/436,964.76 = 80,932.08/x
  3. Step 3: Cross multiply
    291,294.12x = 436,964.76 × 80,932.08
  4. Step 4: Simplify right side
    291,294.12x = 35,364,466,913.50
  5. Step 5: Solve for x
    x = 35,364,466,913.50/291,294.12
  6. Step 6: Final answer
    x = 121,404.67

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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.