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Finding the Fourth Proportional to 253,516.70, 379,728.35 and 238,611.44

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Solution

The fourth proportional to 253,516.70, 379,728.35 and 238,611.44 is: 357,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,516.70 : 379,728.35 = 238,611.44 : x
  2. Step 2: Convert to fraction form
    253,516.70/379,728.35 = 238,611.44/x
  3. Step 3: Cross multiply
    253,516.70x = 379,728.35 × 238,611.44
  4. Step 4: Simplify right side
    253,516.70x = 90,607,525,310.63
  5. Step 5: Solve for x
    x = 90,607,525,310.63/253,516.70
  6. Step 6: Final answer
    x = 357,402.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.