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Finding the Fourth Proportional to 607.14, 910.70 and 260.70

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Solution

The fourth proportional to 607.14, 910.70 and 260.70 is: 391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.14 : 910.70 = 260.70 : x
  2. Step 2: Convert to fraction form
    607.14/910.70 = 260.70/x
  3. Step 3: Cross multiply
    607.14x = 910.70 × 260.70
  4. Step 4: Simplify right side
    607.14x = 237,419.49
  5. Step 5: Solve for x
    x = 237,419.49/607.14
  6. Step 6: Final answer
    x = 391.05

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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.