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Finding the Fourth Proportional to 159,464.70, 238,851.45 and 131,816.70

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Solution

The fourth proportional to 159,464.70, 238,851.45 and 131,816.70 is: 197,439.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,464.70 : 238,851.45 = 131,816.70 : x
  2. Step 2: Convert to fraction form
    159,464.70/238,851.45 = 131,816.70/x
  3. Step 3: Cross multiply
    159,464.70x = 238,851.45 × 131,816.70
  4. Step 4: Simplify right side
    159,464.70x = 31,484,609,929.22
  5. Step 5: Solve for x
    x = 31,484,609,929.22/159,464.70
  6. Step 6: Final answer
    x = 197,439.37

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1.5x scale

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.