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Finding the Fourth Proportional to 253,056.60, 349,079.85 and 162,311.58

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Solution

The fourth proportional to 253,056.60, 349,079.85 and 162,311.58 is: 223,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,056.60 : 349,079.85 = 162,311.58 : x
  2. Step 2: Convert to fraction form
    253,056.60/349,079.85 = 162,311.58/x
  3. Step 3: Cross multiply
    253,056.60x = 349,079.85 × 162,311.58
  4. Step 4: Simplify right side
    253,056.60x = 56,659,701,999.66
  5. Step 5: Solve for x
    x = 56,659,701,999.66/253,056.60
  6. Step 6: Final answer
    x = 223,901.30

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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.