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Finding the Fourth Proportional to 313,640.08, 471,393.24 and 147,544.72

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Solution

The fourth proportional to 313,640.08, 471,393.24 and 147,544.72 is: 221,756.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,640.08 : 471,393.24 = 147,544.72 : x
  2. Step 2: Convert to fraction form
    313,640.08/471,393.24 = 147,544.72/x
  3. Step 3: Cross multiply
    313,640.08x = 471,393.24 × 147,544.72
  4. Step 4: Simplify right side
    313,640.08x = 69,551,583,605.69
  5. Step 5: Solve for x
    x = 69,551,583,605.69/313,640.08
  6. Step 6: Final answer
    x = 221,756.04

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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.