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Finding the Fourth Proportional to 290,575.48, 401,004.48 and 163,248.52

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Solution

The fourth proportional to 290,575.48, 401,004.48 and 163,248.52 is: 225,288.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,575.48 : 401,004.48 = 163,248.52 : x
  2. Step 2: Convert to fraction form
    290,575.48/401,004.48 = 163,248.52/x
  3. Step 3: Cross multiply
    290,575.48x = 401,004.48 × 163,248.52
  4. Step 4: Simplify right side
    290,575.48x = 65,463,387,873.37
  5. Step 5: Solve for x
    x = 65,463,387,873.37/290,575.48
  6. Step 6: Final answer
    x = 225,288.75

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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.