Home / 258,408.02-387,217.29-108,566.39

Finding the Fourth Proportional to 258,408.02, 387,217.29 and 108,566.39

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Solution

The fourth proportional to 258,408.02, 387,217.29 and 108,566.39 is: 162,683.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,408.02 : 387,217.29 = 108,566.39 : x
  2. Step 2: Convert to fraction form
    258,408.02/387,217.29 = 108,566.39/x
  3. Step 3: Cross multiply
    258,408.02x = 387,217.29 × 108,566.39
  4. Step 4: Simplify right side
    258,408.02x = 42,038,784,696.05
  5. Step 5: Solve for x
    x = 42,038,784,696.05/258,408.02
  6. Step 6: Final answer
    x = 162,683.74

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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.