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Finding the Fourth Proportional to 567.87, 783.66 and 331.98

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Solution

The fourth proportional to 567.87, 783.66 and 331.98 is: 458.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.87 : 783.66 = 331.98 : x
  2. Step 2: Convert to fraction form
    567.87/783.66 = 331.98/x
  3. Step 3: Cross multiply
    567.87x = 783.66 × 331.98
  4. Step 4: Simplify right side
    567.87x = 260,159.45
  5. Step 5: Solve for x
    x = 260,159.45/567.87
  6. Step 6: Final answer
    x = 458.13

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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.