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Finding the Fourth Proportional to 436,615.20, 654,953.04 and 170,287.20

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Solution

The fourth proportional to 436,615.20, 654,953.04 and 170,287.20 is: 255,442.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,615.20 : 654,953.04 = 170,287.20 : x
  2. Step 2: Convert to fraction form
    436,615.20/654,953.04 = 170,287.20/x
  3. Step 3: Cross multiply
    436,615.20x = 654,953.04 × 170,287.20
  4. Step 4: Simplify right side
    436,615.20x = 111,530,119,313.09
  5. Step 5: Solve for x
    x = 111,530,119,313.09/436,615.20
  6. Step 6: Final answer
    x = 255,442.59

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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.