Home / 251,878.50-347,592.33-138,701.25

Finding the Fourth Proportional to 251,878.50, 347,592.33 and 138,701.25

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Solution

The fourth proportional to 251,878.50, 347,592.33 and 138,701.25 is: 191,407.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,878.50 : 347,592.33 = 138,701.25 : x
  2. Step 2: Convert to fraction form
    251,878.50/347,592.33 = 138,701.25/x
  3. Step 3: Cross multiply
    251,878.50x = 347,592.33 × 138,701.25
  4. Step 4: Simplify right side
    251,878.50x = 48,211,490,661.41
  5. Step 5: Solve for x
    x = 48,211,490,661.41/251,878.50
  6. Step 6: Final answer
    x = 191,407.73

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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.