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Finding the Fourth Proportional to 619.01, 854.31 and 370.32

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Solution

The fourth proportional to 619.01, 854.31 and 370.32 is: 511.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.01 : 854.31 = 370.32 : x
  2. Step 2: Convert to fraction form
    619.01/854.31 = 370.32/x
  3. Step 3: Cross multiply
    619.01x = 854.31 × 370.32
  4. Step 4: Simplify right side
    619.01x = 316,368.08
  5. Step 5: Solve for x
    x = 316,368.08/619.01
  6. Step 6: Final answer
    x = 511.09

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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.