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Finding the Fourth Proportional to 203,019.20, 303,945.60 and 124,287.20

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Solution

The fourth proportional to 203,019.20, 303,945.60 and 124,287.20 is: 186,073.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,019.20 : 303,945.60 = 124,287.20 : x
  2. Step 2: Convert to fraction form
    203,019.20/303,945.60 = 124,287.20/x
  3. Step 3: Cross multiply
    203,019.20x = 303,945.60 × 124,287.20
  4. Step 4: Simplify right side
    203,019.20x = 37,776,547,576.32
  5. Step 5: Solve for x
    x = 37,776,547,576.32/203,019.20
  6. Step 6: Final answer
    x = 186,073.77

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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.