Home / 264,890.10-396,989.55-122,718.90

Finding the Fourth Proportional to 264,890.10, 396,989.55 and 122,718.90

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Solution

The fourth proportional to 264,890.10, 396,989.55 and 122,718.90 is: 183,918.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,890.10 : 396,989.55 = 122,718.90 : x
  2. Step 2: Convert to fraction form
    264,890.10/396,989.55 = 122,718.90/x
  3. Step 3: Cross multiply
    264,890.10x = 396,989.55 × 122,718.90
  4. Step 4: Simplify right side
    264,890.10x = 48,718,120,887.50
  5. Step 5: Solve for x
    x = 48,718,120,887.50/264,890.10
  6. Step 6: Final answer
    x = 183,918.24

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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.