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Finding the Fourth Proportional to 510,105.40, 765,449.70 and 194,788.60

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Solution

The fourth proportional to 510,105.40, 765,449.70 and 194,788.60 is: 292,294.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,105.40 : 765,449.70 = 194,788.60 : x
  2. Step 2: Convert to fraction form
    510,105.40/765,449.70 = 194,788.60/x
  3. Step 3: Cross multiply
    510,105.40x = 765,449.70 × 194,788.60
  4. Step 4: Simplify right side
    510,105.40x = 149,100,875,433.42
  5. Step 5: Solve for x
    x = 149,100,875,433.42/510,105.40
  6. Step 6: Final answer
    x = 292,294.25

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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.