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Finding the Fourth Proportional to 615.51, 922.55 and 341.19

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Solution

The fourth proportional to 615.51, 922.55 and 341.19 is: 511.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.51 : 922.55 = 341.19 : x
  2. Step 2: Convert to fraction form
    615.51/922.55 = 341.19/x
  3. Step 3: Cross multiply
    615.51x = 922.55 × 341.19
  4. Step 4: Simplify right side
    615.51x = 314,763.13
  5. Step 5: Solve for x
    x = 314,763.13/615.51
  6. Step 6: Final answer
    x = 511.39

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Double scale
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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.