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Finding the Fourth Proportional to 262,971.92, 362,904.36 and 143,739.92

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Solution

The fourth proportional to 262,971.92, 362,904.36 and 143,739.92 is: 198,362.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,971.92 : 362,904.36 = 143,739.92 : x
  2. Step 2: Convert to fraction form
    262,971.92/362,904.36 = 143,739.92/x
  3. Step 3: Cross multiply
    262,971.92x = 362,904.36 × 143,739.92
  4. Step 4: Simplify right side
    262,971.92x = 52,163,843,674.05
  5. Step 5: Solve for x
    x = 52,163,843,674.05/262,971.92
  6. Step 6: Final answer
    x = 198,362.79

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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.