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Finding the Fourth Proportional to 567.66, 782.86 and 368.30

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Solution

The fourth proportional to 567.66, 782.86 and 368.30 is: 507.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.66 : 782.86 = 368.30 : x
  2. Step 2: Convert to fraction form
    567.66/782.86 = 368.30/x
  3. Step 3: Cross multiply
    567.66x = 782.86 × 368.30
  4. Step 4: Simplify right side
    567.66x = 288,322.50
  5. Step 5: Solve for x
    x = 288,322.50/567.66
  6. Step 6: Final answer
    x = 507.91

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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.