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Finding the Fourth Proportional to 219,911.60, 329,867.40 and 101,543.60

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Solution

The fourth proportional to 219,911.60, 329,867.40 and 101,543.60 is: 152,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,911.60 : 329,867.40 = 101,543.60 : x
  2. Step 2: Convert to fraction form
    219,911.60/329,867.40 = 101,543.60/x
  3. Step 3: Cross multiply
    219,911.60x = 329,867.40 × 101,543.60
  4. Step 4: Simplify right side
    219,911.60x = 33,495,923,318.64
  5. Step 5: Solve for x
    x = 33,495,923,318.64/219,911.60
  6. Step 6: Final answer
    x = 152,315.40

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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.