Home / 290,579.52-401,010-163,252.56

Finding the Fourth Proportional to 290,579.52, 401,010 and 163,252.56

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Solution

The fourth proportional to 290,579.52, 401,010 and 163,252.56 is: 225,294.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,579.52 : 401,010 = 163,252.56 : x
  2. Step 2: Convert to fraction form
    290,579.52/401,010 = 163,252.56/x
  3. Step 3: Cross multiply
    290,579.52x = 401,010 × 163,252.56
  4. Step 4: Simplify right side
    290,579.52x = 65,465,909,085.60
  5. Step 5: Solve for x
    x = 65,465,909,085.60/290,579.52
  6. Step 6: Final answer
    x = 225,294.30

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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.