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Finding the Fourth Proportional to 199,646.40, 299,469.60 and 185,212.20

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Solution

The fourth proportional to 199,646.40, 299,469.60 and 185,212.20 is: 277,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,646.40 : 299,469.60 = 185,212.20 : x
  2. Step 2: Convert to fraction form
    199,646.40/299,469.60 = 185,212.20/x
  3. Step 3: Cross multiply
    199,646.40x = 299,469.60 × 185,212.20
  4. Step 4: Simplify right side
    199,646.40x = 55,465,423,449.12
  5. Step 5: Solve for x
    x = 55,465,423,449.12/199,646.40
  6. Step 6: Final answer
    x = 277,818.30

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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.