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Finding the Fourth Proportional to 570.06, 854.78 and 204.78

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Solution

The fourth proportional to 570.06, 854.78 and 204.78 is: 307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.06 : 854.78 = 204.78 : x
  2. Step 2: Convert to fraction form
    570.06/854.78 = 204.78/x
  3. Step 3: Cross multiply
    570.06x = 854.78 × 204.78
  4. Step 4: Simplify right side
    570.06x = 175,041.85
  5. Step 5: Solve for x
    x = 175,041.85/570.06
  6. Step 6: Final answer
    x = 307.06

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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.