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Finding the Fourth Proportional to 616.15, 924.08 and 286.88

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Solution

The fourth proportional to 616.15, 924.08 and 286.88 is: 430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.15 : 924.08 = 286.88 : x
  2. Step 2: Convert to fraction form
    616.15/924.08 = 286.88/x
  3. Step 3: Cross multiply
    616.15x = 924.08 × 286.88
  4. Step 4: Simplify right side
    616.15x = 265,104.01
  5. Step 5: Solve for x
    x = 265,104.01/616.15
  6. Step 6: Final answer
    x = 430.26

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1.5x scale

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.