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Finding the Fourth Proportional to 243,300.28, 335,740.44 and 145,294.12

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Solution

The fourth proportional to 243,300.28, 335,740.44 and 145,294.12 is: 200,497.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,300.28 : 335,740.44 = 145,294.12 : x
  2. Step 2: Convert to fraction form
    243,300.28/335,740.44 = 145,294.12/x
  3. Step 3: Cross multiply
    243,300.28x = 335,740.44 × 145,294.12
  4. Step 4: Simplify right side
    243,300.28x = 48,781,111,778.21
  5. Step 5: Solve for x
    x = 48,781,111,778.21/243,300.28
  6. Step 6: Final answer
    x = 200,497.56

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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.