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Finding the Fourth Proportional to 219,200.90, 328,801.35 and 101,102.90

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Solution

The fourth proportional to 219,200.90, 328,801.35 and 101,102.90 is: 151,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,200.90 : 328,801.35 = 101,102.90 : x
  2. Step 2: Convert to fraction form
    219,200.90/328,801.35 = 101,102.90/x
  3. Step 3: Cross multiply
    219,200.90x = 328,801.35 × 101,102.90
  4. Step 4: Simplify right side
    219,200.90x = 33,242,770,008.92
  5. Step 5: Solve for x
    x = 33,242,770,008.92/219,200.90
  6. Step 6: Final answer
    x = 151,654.35

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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.