Home / 251,479.06-347,048.37-138,309.10

Finding the Fourth Proportional to 251,479.06, 347,048.37 and 138,309.10

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Solution

The fourth proportional to 251,479.06, 347,048.37 and 138,309.10 is: 190,870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,479.06 : 347,048.37 = 138,309.10 : x
  2. Step 2: Convert to fraction form
    251,479.06/347,048.37 = 138,309.10/x
  3. Step 3: Cross multiply
    251,479.06x = 347,048.37 × 138,309.10
  4. Step 4: Simplify right side
    251,479.06x = 47,999,947,711.17
  5. Step 5: Solve for x
    x = 47,999,947,711.17/251,479.06
  6. Step 6: Final answer
    x = 190,870.55

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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.