Home / 313,811.28-470,569.08-113,990.76

Finding the Fourth Proportional to 313,811.28, 470,569.08 and 113,990.76

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Solution

The fourth proportional to 313,811.28, 470,569.08 and 113,990.76 is: 170,932.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,811.28 : 470,569.08 = 113,990.76 : x
  2. Step 2: Convert to fraction form
    313,811.28/470,569.08 = 113,990.76/x
  3. Step 3: Cross multiply
    313,811.28x = 470,569.08 × 113,990.76
  4. Step 4: Simplify right side
    313,811.28x = 53,640,527,061.70
  5. Step 5: Solve for x
    x = 53,640,527,061.70/313,811.28
  6. Step 6: Final answer
    x = 170,932.44

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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.