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Finding the Fourth Proportional to 253,333.95, 349,597.84 and 138,611.25

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Solution

The fourth proportional to 253,333.95, 349,597.84 and 138,611.25 is: 191,281.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,333.95 : 349,597.84 = 138,611.25 : x
  2. Step 2: Convert to fraction form
    253,333.95/349,597.84 = 138,611.25/x
  3. Step 3: Cross multiply
    253,333.95x = 349,597.84 × 138,611.25
  4. Step 4: Simplify right side
    253,333.95x = 48,458,193,599.70
  5. Step 5: Solve for x
    x = 48,458,193,599.70/253,333.95
  6. Step 6: Final answer
    x = 191,281.88

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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.