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Finding the Fourth Proportional to 246,978.72, 340,830.65 and 133,801.47

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Solution

The fourth proportional to 246,978.72, 340,830.65 and 133,801.47 is: 184,646.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,978.72 : 340,830.65 = 133,801.47 : x
  2. Step 2: Convert to fraction form
    246,978.72/340,830.65 = 133,801.47/x
  3. Step 3: Cross multiply
    246,978.72x = 340,830.65 × 133,801.47
  4. Step 4: Simplify right side
    246,978.72x = 45,603,641,322.05
  5. Step 5: Solve for x
    x = 45,603,641,322.05/246,978.72
  6. Step 6: Final answer
    x = 184,646.03

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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.