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Finding the Fourth Proportional to 200,416.60, 300,711.30 and 101,920.60

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Solution

The fourth proportional to 200,416.60, 300,711.30 and 101,920.60 is: 152,924.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,416.60 : 300,711.30 = 101,920.60 : x
  2. Step 2: Convert to fraction form
    200,416.60/300,711.30 = 101,920.60/x
  3. Step 3: Cross multiply
    200,416.60x = 300,711.30 × 101,920.60
  4. Step 4: Simplify right side
    200,416.60x = 30,648,676,122.78
  5. Step 5: Solve for x
    x = 30,648,676,122.78/200,416.60
  6. Step 6: Final answer
    x = 152,924.84

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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.