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Finding the Fourth Proportional to 292,365.78, 403,464.83 and 158,229.78

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Solution

The fourth proportional to 292,365.78, 403,464.83 and 158,229.78 is: 218,357.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,365.78 : 403,464.83 = 158,229.78 : x
  2. Step 2: Convert to fraction form
    292,365.78/403,464.83 = 158,229.78/x
  3. Step 3: Cross multiply
    292,365.78x = 403,464.83 × 158,229.78
  4. Step 4: Simplify right side
    292,365.78x = 63,840,150,497.49
  5. Step 5: Solve for x
    x = 63,840,150,497.49/292,365.78
  6. Step 6: Final answer
    x = 218,357.12

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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.