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Finding the Fourth Proportional to 199,223.60, 299,029.80 and 99,496.40

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Solution

The fourth proportional to 199,223.60, 299,029.80 and 99,496.40 is: 149,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,223.60 : 299,029.80 = 99,496.40 : x
  2. Step 2: Convert to fraction form
    199,223.60/299,029.80 = 99,496.40/x
  3. Step 3: Cross multiply
    199,223.60x = 299,029.80 × 99,496.40
  4. Step 4: Simplify right side
    199,223.60x = 29,752,388,592.72
  5. Step 5: Solve for x
    x = 29,752,388,592.72/199,223.60
  6. Step 6: Final answer
    x = 149,341.69

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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.