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Finding the Fourth Proportional to 243,003.70, 335,344.60 and 135,567.32

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Solution

The fourth proportional to 243,003.70, 335,344.60 and 135,567.32 is: 187,082.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,003.70 : 335,344.60 = 135,567.32 : x
  2. Step 2: Convert to fraction form
    243,003.70/335,344.60 = 135,567.32/x
  3. Step 3: Cross multiply
    243,003.70x = 335,344.60 × 135,567.32
  4. Step 4: Simplify right side
    243,003.70x = 45,461,768,698.47
  5. Step 5: Solve for x
    x = 45,461,768,698.47/243,003.70
  6. Step 6: Final answer
    x = 187,082.62

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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.