Home / 251,942.80-347,681.04-138,765.55

Finding the Fourth Proportional to 251,942.80, 347,681.04 and 138,765.55

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Solution

The fourth proportional to 251,942.80, 347,681.04 and 138,765.55 is: 191,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,942.80 : 347,681.04 = 138,765.55 : x
  2. Step 2: Convert to fraction form
    251,942.80/347,681.04 = 138,765.55/x
  3. Step 3: Cross multiply
    251,942.80x = 347,681.04 × 138,765.55
  4. Step 4: Simplify right side
    251,942.80x = 48,246,150,740.17
  5. Step 5: Solve for x
    x = 48,246,150,740.17/251,942.80
  6. Step 6: Final answer
    x = 191,496.45

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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.