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Finding the Fourth Proportional to 251,951.42, 347,692.93 and 138,774.17

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Solution

The fourth proportional to 251,951.42, 347,692.93 and 138,774.17 is: 191,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,951.42 : 347,692.93 = 138,774.17 : x
  2. Step 2: Convert to fraction form
    251,951.42/347,692.93 = 138,774.17/x
  3. Step 3: Cross multiply
    251,951.42x = 347,692.93 × 138,774.17
  4. Step 4: Simplify right side
    251,951.42x = 48,250,798,297.92
  5. Step 5: Solve for x
    x = 48,250,798,297.92/251,951.42
  6. Step 6: Final answer
    x = 191,508.34

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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.