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Finding the Fourth Proportional to 158,690.72, 238,035.05 and 40,361.04

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Solution

The fourth proportional to 158,690.72, 238,035.05 and 40,361.04 is: 60,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,690.72 : 238,035.05 = 40,361.04 : x
  2. Step 2: Convert to fraction form
    158,690.72/238,035.05 = 40,361.04/x
  3. Step 3: Cross multiply
    158,690.72x = 238,035.05 × 40,361.04
  4. Step 4: Simplify right side
    158,690.72x = 9,607,341,972.65
  5. Step 5: Solve for x
    x = 9,607,341,972.65/158,690.72
  6. Step 6: Final answer
    x = 60,541.30

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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.