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Finding the Fourth Proportional to 291,243.20, 436,519.20 and 150,929.60

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Solution

The fourth proportional to 291,243.20, 436,519.20 and 150,929.60 is: 226,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,243.20 : 436,519.20 = 150,929.60 : x
  2. Step 2: Convert to fraction form
    291,243.20/436,519.20 = 150,929.60/x
  3. Step 3: Cross multiply
    291,243.20x = 436,519.20 × 150,929.60
  4. Step 4: Simplify right side
    291,243.20x = 65,883,668,248.32
  5. Step 5: Solve for x
    x = 65,883,668,248.32/291,243.20
  6. Step 6: Final answer
    x = 226,215.30

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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.