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Finding the Fourth Proportional to 335,039.40, 502,121.70 and 135,196.20

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Solution

The fourth proportional to 335,039.40, 502,121.70 and 135,196.20 is: 202,617.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,039.40 : 502,121.70 = 135,196.20 : x
  2. Step 2: Convert to fraction form
    335,039.40/502,121.70 = 135,196.20/x
  3. Step 3: Cross multiply
    335,039.40x = 502,121.70 × 135,196.20
  4. Step 4: Simplify right side
    335,039.40x = 67,884,945,777.54
  5. Step 5: Solve for x
    x = 67,884,945,777.54/335,039.40
  6. Step 6: Final answer
    x = 202,617.80

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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.