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Finding the Fourth Proportional to 243,289.35, 335,665.94 and 141,295.15

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Solution

The fourth proportional to 243,289.35, 335,665.94 and 141,295.15 is: 194,944.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,289.35 : 335,665.94 = 141,295.15 : x
  2. Step 2: Convert to fraction form
    243,289.35/335,665.94 = 141,295.15/x
  3. Step 3: Cross multiply
    243,289.35x = 335,665.94 × 141,295.15
  4. Step 4: Simplify right side
    243,289.35x = 47,427,969,342.19
  5. Step 5: Solve for x
    x = 47,427,969,342.19/243,289.35
  6. Step 6: Final answer
    x = 194,944.70

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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.