Home / 251,499.47-347,071.60-136,779.20

Finding the Fourth Proportional to 251,499.47, 347,071.60 and 136,779.20

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Solution

The fourth proportional to 251,499.47, 347,071.60 and 136,779.20 is: 188,756.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,499.47 : 347,071.60 = 136,779.20 : x
  2. Step 2: Convert to fraction form
    251,499.47/347,071.60 = 136,779.20/x
  3. Step 3: Cross multiply
    251,499.47x = 347,071.60 × 136,779.20
  4. Step 4: Simplify right side
    251,499.47x = 47,472,174,581.09
  5. Step 5: Solve for x
    x = 47,472,174,581.09/251,499.47
  6. Step 6: Final answer
    x = 188,756.56

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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.