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Finding the Fourth Proportional to 292, 438.06 and 97.06

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Solution

The fourth proportional to 292, 438.06 and 97.06 is: 145.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    292 : 438.06 = 97.06 : x
  2. Step 2: Convert to fraction form
    292/438.06 = 97.06/x
  3. Step 3: Cross multiply
    292x = 438.06 × 97.06
  4. Step 4: Simplify right side
    292x = 42,518.10
  5. Step 5: Solve for x
    x = 42,518.10/292
  6. Step 6: Final answer
    x = 145.61

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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.