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Finding the Fourth Proportional to 215,953.48, 297,861.48 and 187,221.82

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Solution

The fourth proportional to 215,953.48, 297,861.48 and 187,221.82 is: 258,232.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,953.48 : 297,861.48 = 187,221.82 : x
  2. Step 2: Convert to fraction form
    215,953.48/297,861.48 = 187,221.82/x
  3. Step 3: Cross multiply
    215,953.48x = 297,861.48 × 187,221.82
  4. Step 4: Simplify right side
    215,953.48x = 55,766,168,393.49
  5. Step 5: Solve for x
    x = 55,766,168,393.49/215,953.48
  6. Step 6: Final answer
    x = 258,232.32

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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.