Home / 261,408.02-392,111.96-74,419.52

Finding the Fourth Proportional to 261,408.02, 392,111.96 and 74,419.52

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Solution

The fourth proportional to 261,408.02, 392,111.96 and 74,419.52 is: 111,629.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,408.02 : 392,111.96 = 74,419.52 : x
  2. Step 2: Convert to fraction form
    261,408.02/392,111.96 = 74,419.52/x
  3. Step 3: Cross multiply
    261,408.02x = 392,111.96 × 74,419.52
  4. Step 4: Simplify right side
    261,408.02x = 29,180,781,516.80
  5. Step 5: Solve for x
    x = 29,180,781,516.80/261,408.02
  6. Step 6: Final answer
    x = 111,629.25

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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.