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Finding the Fourth Proportional to 292.06, 403.02 and 230.05

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Solution

The fourth proportional to 292.06, 403.02 and 230.05 is: 317.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.06 : 403.02 = 230.05 : x
  2. Step 2: Convert to fraction form
    292.06/403.02 = 230.05/x
  3. Step 3: Cross multiply
    292.06x = 403.02 × 230.05
  4. Step 4: Simplify right side
    292.06x = 92,713.74
  5. Step 5: Solve for x
    x = 92,713.74/292.06
  6. Step 6: Final answer
    x = 317.45

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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.