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Finding the Fourth Proportional to 340,504.20, 511,047.90 and 151,255.80

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Solution

The fourth proportional to 340,504.20, 511,047.90 and 151,255.80 is: 227,013.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,504.20 : 511,047.90 = 151,255.80 : x
  2. Step 2: Convert to fraction form
    340,504.20/511,047.90 = 151,255.80/x
  3. Step 3: Cross multiply
    340,504.20x = 511,047.90 × 151,255.80
  4. Step 4: Simplify right side
    340,504.20x = 77,298,958,952.82
  5. Step 5: Solve for x
    x = 77,298,958,952.82/340,504.20
  6. Step 6: Final answer
    x = 227,013.23

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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.