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Finding the Fourth Proportional to 353,637.72, 488,011.50 and 202,725

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Solution

The fourth proportional to 353,637.72, 488,011.50 and 202,725 is: 279,755.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,637.72 : 488,011.50 = 202,725 : x
  2. Step 2: Convert to fraction form
    353,637.72/488,011.50 = 202,725/x
  3. Step 3: Cross multiply
    353,637.72x = 488,011.50 × 202,725
  4. Step 4: Simplify right side
    353,637.72x = 98,932,131,337.50
  5. Step 5: Solve for x
    x = 98,932,131,337.50/353,637.72
  6. Step 6: Final answer
    x = 279,755.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.