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Finding the Fourth Proportional to 243,054.37, 335,475.07 and 147,641.03

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Solution

The fourth proportional to 243,054.37, 335,475.07 and 147,641.03 is: 203,781.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,054.37 : 335,475.07 = 147,641.03 : x
  2. Step 2: Convert to fraction form
    243,054.37/335,475.07 = 147,641.03/x
  3. Step 3: Cross multiply
    243,054.37x = 335,475.07 × 147,641.03
  4. Step 4: Simplify right side
    243,054.37x = 49,529,884,085.68
  5. Step 5: Solve for x
    x = 49,529,884,085.68/243,054.37
  6. Step 6: Final answer
    x = 203,781.09

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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.