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Finding the Fourth Proportional to 613,265.40, 919,898.10 and 213,773.40

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Solution

The fourth proportional to 613,265.40, 919,898.10 and 213,773.40 is: 320,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,265.40 : 919,898.10 = 213,773.40 : x
  2. Step 2: Convert to fraction form
    613,265.40/919,898.10 = 213,773.40/x
  3. Step 3: Cross multiply
    613,265.40x = 919,898.10 × 213,773.40
  4. Step 4: Simplify right side
    613,265.40x = 196,649,744,490.54
  5. Step 5: Solve for x
    x = 196,649,744,490.54/613,265.40
  6. Step 6: Final answer
    x = 320,660.10

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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.