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Finding the Fourth Proportional to 243,313.82, 335,769.75 and 135,885.74

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Solution

The fourth proportional to 243,313.82, 335,769.75 and 135,885.74 is: 187,520.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,313.82 : 335,769.75 = 135,885.74 : x
  2. Step 2: Convert to fraction form
    243,313.82/335,769.75 = 135,885.74/x
  3. Step 3: Cross multiply
    243,313.82x = 335,769.75 × 135,885.74
  4. Step 4: Simplify right side
    243,313.82x = 45,626,320,948.37
  5. Step 5: Solve for x
    x = 45,626,320,948.37/243,313.82
  6. Step 6: Final answer
    x = 187,520.47

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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.