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Finding the Fourth Proportional to 610.13, 841.68 and 400.22

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Solution

The fourth proportional to 610.13, 841.68 and 400.22 is: 552.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.13 : 841.68 = 400.22 : x
  2. Step 2: Convert to fraction form
    610.13/841.68 = 400.22/x
  3. Step 3: Cross multiply
    610.13x = 841.68 × 400.22
  4. Step 4: Simplify right side
    610.13x = 336,852.96
  5. Step 5: Solve for x
    x = 336,852.96/610.13
  6. Step 6: Final answer
    x = 552.10

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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.