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Finding the Fourth Proportional to 219,803.28, 329,701.32 and 70,041.56

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Solution

The fourth proportional to 219,803.28, 329,701.32 and 70,041.56 is: 105,061.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,803.28 : 329,701.32 = 70,041.56 : x
  2. Step 2: Convert to fraction form
    219,803.28/329,701.32 = 70,041.56/x
  3. Step 3: Cross multiply
    219,803.28x = 329,701.32 × 70,041.56
  4. Step 4: Simplify right side
    219,803.28x = 23,092,794,786.86
  5. Step 5: Solve for x
    x = 23,092,794,786.86/219,803.28
  6. Step 6: Final answer
    x = 105,061.19

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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.