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Finding the Fourth Proportional to 220,522.86, 330,477.84 and 115,131.60

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Solution

The fourth proportional to 220,522.86, 330,477.84 and 115,131.60 is: 172,537.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,522.86 : 330,477.84 = 115,131.60 : x
  2. Step 2: Convert to fraction form
    220,522.86/330,477.84 = 115,131.60/x
  3. Step 3: Cross multiply
    220,522.86x = 330,477.84 × 115,131.60
  4. Step 4: Simplify right side
    220,522.86x = 38,048,442,483.74
  5. Step 5: Solve for x
    x = 38,048,442,483.74/220,522.86
  6. Step 6: Final answer
    x = 172,537.41

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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.