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Finding the Fourth Proportional to 258,362.11, 356,551.58 and 143,652.42

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Solution

The fourth proportional to 258,362.11, 356,551.58 and 143,652.42 is: 198,246.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,362.11 : 356,551.58 = 143,652.42 : x
  2. Step 2: Convert to fraction form
    258,362.11/356,551.58 = 143,652.42/x
  3. Step 3: Cross multiply
    258,362.11x = 356,551.58 × 143,652.42
  4. Step 4: Simplify right side
    258,362.11x = 51,219,497,321.82
  5. Step 5: Solve for x
    x = 51,219,497,321.82/258,362.11
  6. Step 6: Final answer
    x = 198,246.94

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1.5x scale

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.