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Finding the Fourth Proportional to 313,806.75, 470,434.19 and 124,400.17

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Solution

The fourth proportional to 313,806.75, 470,434.19 and 124,400.17 is: 186,490.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,806.75 : 470,434.19 = 124,400.17 : x
  2. Step 2: Convert to fraction form
    313,806.75/470,434.19 = 124,400.17/x
  3. Step 3: Cross multiply
    313,806.75x = 470,434.19 × 124,400.17
  4. Step 4: Simplify right side
    313,806.75x = 58,522,091,411.73
  5. Step 5: Solve for x
    x = 58,522,091,411.73/313,806.75
  6. Step 6: Final answer
    x = 186,490.86

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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.