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Finding the Fourth Proportional to 219,635.78, 329,077.19 and 147,453.50

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Solution

The fourth proportional to 219,635.78, 329,077.19 and 147,453.50 is: 220,927.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,635.78 : 329,077.19 = 147,453.50 : x
  2. Step 2: Convert to fraction form
    219,635.78/329,077.19 = 147,453.50/x
  3. Step 3: Cross multiply
    219,635.78x = 329,077.19 × 147,453.50
  4. Step 4: Simplify right side
    219,635.78x = 48,523,582,158.91
  5. Step 5: Solve for x
    x = 48,523,582,158.91/219,635.78
  6. Step 6: Final answer
    x = 220,927.50

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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.