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Finding the Fourth Proportional to 568.42, 783.07 and 468.18

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Solution

The fourth proportional to 568.42, 783.07 and 468.18 is: 644.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.42 : 783.07 = 468.18 : x
  2. Step 2: Convert to fraction form
    568.42/783.07 = 468.18/x
  3. Step 3: Cross multiply
    568.42x = 783.07 × 468.18
  4. Step 4: Simplify right side
    568.42x = 366,616.54
  5. Step 5: Solve for x
    x = 366,616.54/568.42
  6. Step 6: Final answer
    x = 644.98

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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.