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Finding the Fourth Proportional to 284,110.72, 425,759.92 and 208,638.88

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Solution

The fourth proportional to 284,110.72, 425,759.92 and 208,638.88 is: 312,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,110.72 : 425,759.92 = 208,638.88 : x
  2. Step 2: Convert to fraction form
    284,110.72/425,759.92 = 208,638.88/x
  3. Step 3: Cross multiply
    284,110.72x = 425,759.92 × 208,638.88
  4. Step 4: Simplify right side
    284,110.72x = 88,830,072,857.69
  5. Step 5: Solve for x
    x = 88,830,072,857.69/284,110.72
  6. Step 6: Final answer
    x = 312,660.05

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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.