Home / 251,722.08-347,386.32-138,555.36

Finding the Fourth Proportional to 251,722.08, 347,386.32 and 138,555.36

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Solution

The fourth proportional to 251,722.08, 347,386.32 and 138,555.36 is: 191,211.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,722.08 : 347,386.32 = 138,555.36 : x
  2. Step 2: Convert to fraction form
    251,722.08/347,386.32 = 138,555.36/x
  3. Step 3: Cross multiply
    251,722.08x = 347,386.32 × 138,555.36
  4. Step 4: Simplify right side
    251,722.08x = 48,132,236,626.68
  5. Step 5: Solve for x
    x = 48,132,236,626.68/251,722.08
  6. Step 6: Final answer
    x = 191,211.82

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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.