Home / 290,172.96-400,237.20-236,458.08

Finding the Fourth Proportional to 290,172.96, 400,237.20 and 236,458.08

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Solution

The fourth proportional to 290,172.96, 400,237.20 and 236,458.08 is: 326,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,172.96 : 400,237.20 = 236,458.08 : x
  2. Step 2: Convert to fraction form
    290,172.96/400,237.20 = 236,458.08/x
  3. Step 3: Cross multiply
    290,172.96x = 400,237.20 × 236,458.08
  4. Step 4: Simplify right side
    290,172.96x = 94,639,319,856.58
  5. Step 5: Solve for x
    x = 94,639,319,856.58/290,172.96
  6. Step 6: Final answer
    x = 326,147.96

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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.