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Finding the Fourth Proportional to 610.15, 841.89 and 348.13

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Solution

The fourth proportional to 610.15, 841.89 and 348.13 is: 480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.15 : 841.89 = 348.13 : x
  2. Step 2: Convert to fraction form
    610.15/841.89 = 348.13/x
  3. Step 3: Cross multiply
    610.15x = 841.89 × 348.13
  4. Step 4: Simplify right side
    610.15x = 293,087.17
  5. Step 5: Solve for x
    x = 293,087.17/610.15
  6. Step 6: Final answer
    x = 480.35

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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.