Home / 292,021.20-438,029.04-92,341.56

Finding the Fourth Proportional to 292,021.20, 438,029.04 and 92,341.56

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Solution

The fourth proportional to 292,021.20, 438,029.04 and 92,341.56 is: 138,511.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,021.20 : 438,029.04 = 92,341.56 : x
  2. Step 2: Convert to fraction form
    292,021.20/438,029.04 = 92,341.56/x
  3. Step 3: Cross multiply
    292,021.20x = 438,029.04 × 92,341.56
  4. Step 4: Simplify right side
    292,021.20x = 40,448,284,878.90
  5. Step 5: Solve for x
    x = 40,448,284,878.90/292,021.20
  6. Step 6: Final answer
    x = 138,511.47

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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.