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Finding the Fourth Proportional to 219,791.34, 329,452.05 and 157,272.30

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Solution

The fourth proportional to 219,791.34, 329,452.05 and 157,272.30 is: 235,740.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,791.34 : 329,452.05 = 157,272.30 : x
  2. Step 2: Convert to fraction form
    219,791.34/329,452.05 = 157,272.30/x
  3. Step 3: Cross multiply
    219,791.34x = 329,452.05 × 157,272.30
  4. Step 4: Simplify right side
    219,791.34x = 51,813,681,643.22
  5. Step 5: Solve for x
    x = 51,813,681,643.22/219,791.34
  6. Step 6: Final answer
    x = 235,740.32

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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.