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Finding the Fourth Proportional to 569.50, 854.40 and 179.50

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Solution

The fourth proportional to 569.50, 854.40 and 179.50 is: 269.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.50 : 854.40 = 179.50 : x
  2. Step 2: Convert to fraction form
    569.50/854.40 = 179.50/x
  3. Step 3: Cross multiply
    569.50x = 854.40 × 179.50
  4. Step 4: Simplify right side
    569.50x = 153,364.80
  5. Step 5: Solve for x
    x = 153,364.80/569.50
  6. Step 6: Final answer
    x = 269.30

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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.