Home / 292,403.28-438,779.86-268,608.72

Finding the Fourth Proportional to 292,403.28, 438,779.86 and 268,608.72

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Solution

The fourth proportional to 292,403.28, 438,779.86 and 268,608.72 is: 403,073.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,403.28 : 438,779.86 = 268,608.72 : x
  2. Step 2: Convert to fraction form
    292,403.28/438,779.86 = 268,608.72/x
  3. Step 3: Cross multiply
    292,403.28x = 438,779.86 × 268,608.72
  4. Step 4: Simplify right side
    292,403.28x = 117,860,096,556.38
  5. Step 5: Solve for x
    x = 117,860,096,556.38/292,403.28
  6. Step 6: Final answer
    x = 403,073.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.