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Finding the Fourth Proportional to 606.20, 867.55 and 606.20

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Solution

The fourth proportional to 606.20, 867.55 and 606.20 is: 867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.20 : 867.55 = 606.20 : x
  2. Step 2: Convert to fraction form
    606.20/867.55 = 606.20/x
  3. Step 3: Cross multiply
    606.20x = 867.55 × 606.20
  4. Step 4: Simplify right side
    606.20x = 525,908.81
  5. Step 5: Solve for x
    x = 525,908.81/606.20
  6. Step 6: Final answer
    x = 867.55

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.