Home / 290,844.09-436,253.45-91,159.92

Finding the Fourth Proportional to 290,844.09, 436,253.45 and 91,159.92

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Solution

The fourth proportional to 290,844.09, 436,253.45 and 91,159.92 is: 136,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,844.09 : 436,253.45 = 91,159.92 : x
  2. Step 2: Convert to fraction form
    290,844.09/436,253.45 = 91,159.92/x
  3. Step 3: Cross multiply
    290,844.09x = 436,253.45 × 91,159.92
  4. Step 4: Simplify right side
    290,844.09x = 39,768,829,145.92
  5. Step 5: Solve for x
    x = 39,768,829,145.92/290,844.09
  6. Step 6: Final answer
    x = 136,735.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.