Home / 309,660.06-464,490.82-85,023.57

Finding the Fourth Proportional to 309,660.06, 464,490.82 and 85,023.57

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Solution

The fourth proportional to 309,660.06, 464,490.82 and 85,023.57 is: 127,535.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,660.06 : 464,490.82 = 85,023.57 : x
  2. Step 2: Convert to fraction form
    309,660.06/464,490.82 = 85,023.57/x
  3. Step 3: Cross multiply
    309,660.06x = 464,490.82 × 85,023.57
  4. Step 4: Simplify right side
    309,660.06x = 39,492,669,596.75
  5. Step 5: Solve for x
    x = 39,492,669,596.75/309,660.06
  6. Step 6: Final answer
    x = 127,535.56

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1.5x scale

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.