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Finding the Fourth Proportional to 253,611.64, 349,994.62 and 140,434.39

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Solution

The fourth proportional to 253,611.64, 349,994.62 and 140,434.39 is: 193,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,611.64 : 349,994.62 = 140,434.39 : x
  2. Step 2: Convert to fraction form
    253,611.64/349,994.62 = 140,434.39/x
  3. Step 3: Cross multiply
    253,611.64x = 349,994.62 × 140,434.39
  4. Step 4: Simplify right side
    253,611.64x = 49,151,280,611.90
  5. Step 5: Solve for x
    x = 49,151,280,611.90/253,611.64
  6. Step 6: Final answer
    x = 193,805.30

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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.