Home / 251,150.75-346,588.18-137,980.79

Finding the Fourth Proportional to 251,150.75, 346,588.18 and 137,980.79

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Solution

The fourth proportional to 251,150.75, 346,588.18 and 137,980.79 is: 190,413.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,150.75 : 346,588.18 = 137,980.79 : x
  2. Step 2: Convert to fraction form
    251,150.75/346,588.18 = 137,980.79/x
  3. Step 3: Cross multiply
    251,150.75x = 346,588.18 × 137,980.79
  4. Step 4: Simplify right side
    251,150.75x = 47,822,510,191.16
  5. Step 5: Solve for x
    x = 47,822,510,191.16/251,150.75
  6. Step 6: Final answer
    x = 190,413.57

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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.