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Finding the Fourth Proportional to 360,004.78, 539,700.99 and 219,861.82

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Solution

The fourth proportional to 360,004.78, 539,700.99 and 219,861.82 is: 329,605.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,004.78 : 539,700.99 = 219,861.82 : x
  2. Step 2: Convert to fraction form
    360,004.78/539,700.99 = 219,861.82/x
  3. Step 3: Cross multiply
    360,004.78x = 539,700.99 × 219,861.82
  4. Step 4: Simplify right side
    360,004.78x = 118,659,641,917.20
  5. Step 5: Solve for x
    x = 118,659,641,917.20/360,004.78
  6. Step 6: Final answer
    x = 329,605.74

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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.