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Finding the Fourth Proportional to 219,318.30, 328,722.30 and 101,001.60

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Solution

The fourth proportional to 219,318.30, 328,722.30 and 101,001.60 is: 151,384.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,318.30 : 328,722.30 = 101,001.60 : x
  2. Step 2: Convert to fraction form
    219,318.30/328,722.30 = 101,001.60/x
  3. Step 3: Cross multiply
    219,318.30x = 328,722.30 × 101,001.60
  4. Step 4: Simplify right side
    219,318.30x = 33,201,478,255.68
  5. Step 5: Solve for x
    x = 33,201,478,255.68/219,318.30
  6. Step 6: Final answer
    x = 151,384.90

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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.