Home / 251,742.78-347,413.52-137,025.58

Finding the Fourth Proportional to 251,742.78, 347,413.52 and 137,025.58

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Solution

The fourth proportional to 251,742.78, 347,413.52 and 137,025.58 is: 189,099.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,742.78 : 347,413.52 = 137,025.58 : x
  2. Step 2: Convert to fraction form
    251,742.78/347,413.52 = 137,025.58/x
  3. Step 3: Cross multiply
    251,742.78x = 347,413.52 × 137,025.58
  4. Step 4: Simplify right side
    251,742.78x = 47,604,539,077.84
  5. Step 5: Solve for x
    x = 47,604,539,077.84/251,742.78
  6. Step 6: Final answer
    x = 189,099.92

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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.