Home / 292,435.86-438,669.38-92,772.21

Finding the Fourth Proportional to 292,435.86, 438,669.38 and 92,772.21

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Solution

The fourth proportional to 292,435.86, 438,669.38 and 92,772.21 is: 139,163.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,435.86 : 438,669.38 = 92,772.21 : x
  2. Step 2: Convert to fraction form
    292,435.86/438,669.38 = 92,772.21/x
  3. Step 3: Cross multiply
    292,435.86x = 438,669.38 × 92,772.21
  4. Step 4: Simplify right side
    292,435.86x = 40,696,328,073.86
  5. Step 5: Solve for x
    x = 40,696,328,073.86/292,435.86
  6. Step 6: Final answer
    x = 139,163.26

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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.