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Finding the Fourth Proportional to 616.56, 849.96 and 483.36

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Solution

The fourth proportional to 616.56, 849.96 and 483.36 is: 666.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.56 : 849.96 = 483.36 : x
  2. Step 2: Convert to fraction form
    616.56/849.96 = 483.36/x
  3. Step 3: Cross multiply
    616.56x = 849.96 × 483.36
  4. Step 4: Simplify right side
    616.56x = 410,836.67
  5. Step 5: Solve for x
    x = 410,836.67/616.56
  6. Step 6: Final answer
    x = 666.34

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.