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Finding the Fourth Proportional to 243,299.28, 335,739.06 and 145,293.12

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Solution

The fourth proportional to 243,299.28, 335,739.06 and 145,293.12 is: 200,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,299.28 : 335,739.06 = 145,293.12 : x
  2. Step 2: Convert to fraction form
    243,299.28/335,739.06 = 145,293.12/x
  3. Step 3: Cross multiply
    243,299.28x = 335,739.06 × 145,293.12
  4. Step 4: Simplify right side
    243,299.28x = 48,780,575,533.27
  5. Step 5: Solve for x
    x = 48,780,575,533.27/243,299.28
  6. Step 6: Final answer
    x = 200,496.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.