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Finding the Fourth Proportional to 243,353.52, 335,824.32 and 135,925.08

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Solution

The fourth proportional to 243,353.52, 335,824.32 and 135,925.08 is: 187,574.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,353.52 : 335,824.32 = 135,925.08 : x
  2. Step 2: Convert to fraction form
    243,353.52/335,824.32 = 135,925.08/x
  3. Step 3: Cross multiply
    243,353.52x = 335,824.32 × 135,925.08
  4. Step 4: Simplify right side
    243,353.52x = 45,646,947,561.95
  5. Step 5: Solve for x
    x = 45,646,947,561.95/243,353.52
  6. Step 6: Final answer
    x = 187,574.63

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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.