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Finding the Fourth Proportional to 243,185.58, 364,030.97 and 207,313.38

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Solution

The fourth proportional to 243,185.58, 364,030.97 and 207,313.38 is: 310,332.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,185.58 : 364,030.97 = 207,313.38 : x
  2. Step 2: Convert to fraction form
    243,185.58/364,030.97 = 207,313.38/x
  3. Step 3: Cross multiply
    243,185.58x = 364,030.97 × 207,313.38
  4. Step 4: Simplify right side
    243,185.58x = 75,468,489,778.81
  5. Step 5: Solve for x
    x = 75,468,489,778.81/243,185.58
  6. Step 6: Final answer
    x = 310,332.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.