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Finding the Fourth Proportional to 510,217.40, 765,617.70 and 194,900.60

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Solution

The fourth proportional to 510,217.40, 765,617.70 and 194,900.60 is: 292,462.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,217.40 : 765,617.70 = 194,900.60 : x
  2. Step 2: Convert to fraction form
    510,217.40/765,617.70 = 194,900.60/x
  3. Step 3: Cross multiply
    510,217.40x = 765,617.70 × 194,900.60
  4. Step 4: Simplify right side
    510,217.40x = 149,219,349,100.62
  5. Step 5: Solve for x
    x = 149,219,349,100.62/510,217.40
  6. Step 6: Final answer
    x = 292,462.29

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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.