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Finding the Fourth Proportional to 340,304.09, 509,173.56 and 203,019.49

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Solution

The fourth proportional to 340,304.09, 509,173.56 and 203,019.49 is: 303,764.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,304.09 : 509,173.56 = 203,019.49 : x
  2. Step 2: Convert to fraction form
    340,304.09/509,173.56 = 203,019.49/x
  3. Step 3: Cross multiply
    340,304.09x = 509,173.56 × 203,019.49
  4. Step 4: Simplify right side
    340,304.09x = 103,372,157,870.47
  5. Step 5: Solve for x
    x = 103,372,157,870.47/340,304.09
  6. Step 6: Final answer
    x = 303,764.08

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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.