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Finding the Fourth Proportional to 243,055.37, 335,476.45 and 147,642.03

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Solution

The fourth proportional to 243,055.37, 335,476.45 and 147,642.03 is: 203,782.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,055.37 : 335,476.45 = 147,642.03 : x
  2. Step 2: Convert to fraction form
    243,055.37/335,476.45 = 147,642.03/x
  3. Step 3: Cross multiply
    243,055.37x = 335,476.45 × 147,642.03
  4. Step 4: Simplify right side
    243,055.37x = 49,530,424,095.19
  5. Step 5: Solve for x
    x = 49,530,424,095.19/243,055.37
  6. Step 6: Final answer
    x = 203,782.47

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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.