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Finding the Fourth Proportional to 253,641.60, 349,228.74 and 215,321.73

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Solution

The fourth proportional to 253,641.60, 349,228.74 and 215,321.73 is: 296,467.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,641.60 : 349,228.74 = 215,321.73 : x
  2. Step 2: Convert to fraction form
    253,641.60/349,228.74 = 215,321.73/x
  3. Step 3: Cross multiply
    253,641.60x = 349,228.74 × 215,321.73
  4. Step 4: Simplify right side
    253,641.60x = 75,196,536,462.52
  5. Step 5: Solve for x
    x = 75,196,536,462.52/253,641.60
  6. Step 6: Final answer
    x = 296,467.68

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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.