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Finding the Fourth Proportional to 616.51, 924.64 and 205.53

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Solution

The fourth proportional to 616.51, 924.64 and 205.53 is: 308.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.51 : 924.64 = 205.53 : x
  2. Step 2: Convert to fraction form
    616.51/924.64 = 205.53/x
  3. Step 3: Cross multiply
    616.51x = 924.64 × 205.53
  4. Step 4: Simplify right side
    616.51x = 190,041.26
  5. Step 5: Solve for x
    x = 190,041.26/616.51
  6. Step 6: Final answer
    x = 308.25

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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.