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Finding the Fourth Proportional to 470.77, 705.47 and 227.01

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Solution

The fourth proportional to 470.77, 705.47 and 227.01 is: 340.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.77 : 705.47 = 227.01 : x
  2. Step 2: Convert to fraction form
    470.77/705.47 = 227.01/x
  3. Step 3: Cross multiply
    470.77x = 705.47 × 227.01
  4. Step 4: Simplify right side
    470.77x = 160,148.74
  5. Step 5: Solve for x
    x = 160,148.74/470.77
  6. Step 6: Final answer
    x = 340.18

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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.