Home / 251,972.01-347,721.40-138,794.76

Finding the Fourth Proportional to 251,972.01, 347,721.40 and 138,794.76

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Solution

The fourth proportional to 251,972.01, 347,721.40 and 138,794.76 is: 191,536.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,972.01 : 347,721.40 = 138,794.76 : x
  2. Step 2: Convert to fraction form
    251,972.01/347,721.40 = 138,794.76/x
  3. Step 3: Cross multiply
    251,972.01x = 347,721.40 × 138,794.76
  4. Step 4: Simplify right side
    251,972.01x = 48,261,908,259.86
  5. Step 5: Solve for x
    x = 48,261,908,259.86/251,972.01
  6. Step 6: Final answer
    x = 191,536.78

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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.