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Finding the Fourth Proportional to 202,508.63, 279,450.32 and 120,928.94

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Solution

The fourth proportional to 202,508.63, 279,450.32 and 120,928.94 is: 166,875.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,508.63 : 279,450.32 = 120,928.94 : x
  2. Step 2: Convert to fraction form
    202,508.63/279,450.32 = 120,928.94/x
  3. Step 3: Cross multiply
    202,508.63x = 279,450.32 × 120,928.94
  4. Step 4: Simplify right side
    202,508.63x = 33,793,628,978.36
  5. Step 5: Solve for x
    x = 33,793,628,978.36/202,508.63
  6. Step 6: Final answer
    x = 166,875.01

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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.