Home / 251,470.14-347,021.88-138,292.90

Finding the Fourth Proportional to 251,470.14, 347,021.88 and 138,292.90

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Solution

The fourth proportional to 251,470.14, 347,021.88 and 138,292.90 is: 190,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,470.14 : 347,021.88 = 138,292.90 : x
  2. Step 2: Convert to fraction form
    251,470.14/347,021.88 = 138,292.90/x
  3. Step 3: Cross multiply
    251,470.14x = 347,021.88 × 138,292.90
  4. Step 4: Simplify right side
    251,470.14x = 47,990,662,148.65
  5. Step 5: Solve for x
    x = 47,990,662,148.65/251,470.14
  6. Step 6: Final answer
    x = 190,840.40

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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.