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Finding the Fourth Proportional to 264,390.38, 364,857.75 and 143,530.79

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Solution

The fourth proportional to 264,390.38, 364,857.75 and 143,530.79 is: 198,071.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,390.38 : 364,857.75 = 143,530.79 : x
  2. Step 2: Convert to fraction form
    264,390.38/364,857.75 = 143,530.79/x
  3. Step 3: Cross multiply
    264,390.38x = 364,857.75 × 143,530.79
  4. Step 4: Simplify right side
    264,390.38x = 52,368,319,270.83
  5. Step 5: Solve for x
    x = 52,368,319,270.83/264,390.38
  6. Step 6: Final answer
    x = 198,071.96

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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.