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Finding the Fourth Proportional to 616.40, 849.96 and 610.16

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Solution

The fourth proportional to 616.40, 849.96 and 610.16 is: 841.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.40 : 849.96 = 610.16 : x
  2. Step 2: Convert to fraction form
    616.40/849.96 = 610.16/x
  3. Step 3: Cross multiply
    616.40x = 849.96 × 610.16
  4. Step 4: Simplify right side
    616.40x = 518,611.59
  5. Step 5: Solve for x
    x = 518,611.59/616.40
  6. Step 6: Final answer
    x = 841.36

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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.