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Finding the Fourth Proportional to 199,760.68, 299,299.92 and 109,878.58

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Solution

The fourth proportional to 199,760.68, 299,299.92 and 109,878.58 is: 164,630.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,760.68 : 299,299.92 = 109,878.58 : x
  2. Step 2: Convert to fraction form
    199,760.68/299,299.92 = 109,878.58/x
  3. Step 3: Cross multiply
    199,760.68x = 299,299.92 × 109,878.58
  4. Step 4: Simplify right side
    199,760.68x = 32,886,650,203.71
  5. Step 5: Solve for x
    x = 32,886,650,203.71/199,760.68
  6. Step 6: Final answer
    x = 164,630.25

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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.