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Finding the Fourth Proportional to 660.84, 910.98 and 567.16

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Solution

The fourth proportional to 660.84, 910.98 and 567.16 is: 781.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    660.84 : 910.98 = 567.16 : x
  2. Step 2: Convert to fraction form
    660.84/910.98 = 567.16/x
  3. Step 3: Cross multiply
    660.84x = 910.98 × 567.16
  4. Step 4: Simplify right side
    660.84x = 516,671.42
  5. Step 5: Solve for x
    x = 516,671.42/660.84
  6. Step 6: Final answer
    x = 781.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.