Home / 292,403.67-438,621.17-92,739.21

Finding the Fourth Proportional to 292,403.67, 438,621.17 and 92,739.21

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Solution

The fourth proportional to 292,403.67, 438,621.17 and 92,739.21 is: 139,113.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,403.67 : 438,621.17 = 92,739.21 : x
  2. Step 2: Convert to fraction form
    292,403.67/438,621.17 = 92,739.21/x
  3. Step 3: Cross multiply
    292,403.67x = 438,621.17 × 92,739.21
  4. Step 4: Simplify right side
    292,403.67x = 40,677,380,331.38
  5. Step 5: Solve for x
    x = 40,677,380,331.38/292,403.67
  6. Step 6: Final answer
    x = 139,113.78

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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.