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Finding the Fourth Proportional to 208,637.64, 312,169.14 and 119,932.92

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Solution

The fourth proportional to 208,637.64, 312,169.14 and 119,932.92 is: 179,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,637.64 : 312,169.14 = 119,932.92 : x
  2. Step 2: Convert to fraction form
    208,637.64/312,169.14 = 119,932.92/x
  3. Step 3: Cross multiply
    208,637.64x = 312,169.14 × 119,932.92
  4. Step 4: Simplify right side
    208,637.64x = 37,439,356,494.09
  5. Step 5: Solve for x
    x = 37,439,356,494.09/208,637.64
  6. Step 6: Final answer
    x = 179,446.80

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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.