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Finding the Fourth Proportional to 253,670.22, 349,267.41 and 215,353.98

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Solution

The fourth proportional to 253,670.22, 349,267.41 and 215,353.98 is: 296,511.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,670.22 : 349,267.41 = 215,353.98 : x
  2. Step 2: Convert to fraction form
    253,670.22/349,267.41 = 215,353.98/x
  3. Step 3: Cross multiply
    253,670.22x = 349,267.41 × 215,353.98
  4. Step 4: Simplify right side
    253,670.22x = 75,216,126,827.79
  5. Step 5: Solve for x
    x = 75,216,126,827.79/253,670.22
  6. Step 6: Final answer
    x = 296,511.46

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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.