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Finding the Fourth Proportional to 290,753.58, 436,188.96 and 103,760.22

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Solution

The fourth proportional to 290,753.58, 436,188.96 and 103,760.22 is: 155,661.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,753.58 : 436,188.96 = 103,760.22 : x
  2. Step 2: Convert to fraction form
    290,753.58/436,188.96 = 103,760.22/x
  3. Step 3: Cross multiply
    290,753.58x = 436,188.96 × 103,760.22
  4. Step 4: Simplify right side
    290,753.58x = 45,259,062,451.17
  5. Step 5: Solve for x
    x = 45,259,062,451.17/290,753.58
  6. Step 6: Final answer
    x = 155,661.24

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1.5x scale

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.