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Finding the Fourth Proportional to 243,194.79, 335,574.11 and 135,762.47

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Solution

The fourth proportional to 243,194.79, 335,574.11 and 135,762.47 is: 187,332.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,194.79 : 335,574.11 = 135,762.47 : x
  2. Step 2: Convert to fraction form
    243,194.79/335,574.11 = 135,762.47/x
  3. Step 3: Cross multiply
    243,194.79x = 335,574.11 × 135,762.47
  4. Step 4: Simplify right side
    243,194.79x = 45,558,367,684.97
  5. Step 5: Solve for x
    x = 45,558,367,684.97/243,194.79
  6. Step 6: Final answer
    x = 187,332.83

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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.