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Finding the Fourth Proportional to 606.97, 910.30 and 260.36

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Solution

The fourth proportional to 606.97, 910.30 and 260.36 is: 390.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.97 : 910.30 = 260.36 : x
  2. Step 2: Convert to fraction form
    606.97/910.30 = 260.36/x
  3. Step 3: Cross multiply
    606.97x = 910.30 × 260.36
  4. Step 4: Simplify right side
    606.97x = 237,005.71
  5. Step 5: Solve for x
    x = 237,005.71/606.97
  6. Step 6: Final answer
    x = 390.47

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Double scale
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Similar ratio
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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.