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Finding the Fourth Proportional to 253,000.75, 349,107.23 and 162,479.31

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Solution

The fourth proportional to 253,000.75, 349,107.23 and 162,479.31 is: 224,199.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,000.75 : 349,107.23 = 162,479.31 : x
  2. Step 2: Convert to fraction form
    253,000.75/349,107.23 = 162,479.31/x
  3. Step 3: Cross multiply
    253,000.75x = 349,107.23 × 162,479.31
  4. Step 4: Simplify right side
    253,000.75x = 56,722,701,846.41
  5. Step 5: Solve for x
    x = 56,722,701,846.41/253,000.75
  6. Step 6: Final answer
    x = 224,199.74

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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.