Home / 264,437.20-396,072.60-139,632.40

Finding the Fourth Proportional to 264,437.20, 396,072.60 and 139,632.40

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Solution

The fourth proportional to 264,437.20, 396,072.60 and 139,632.40 is: 209,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,437.20 : 396,072.60 = 139,632.40 : x
  2. Step 2: Convert to fraction form
    264,437.20/396,072.60 = 139,632.40/x
  3. Step 3: Cross multiply
    264,437.20x = 396,072.60 × 139,632.40
  4. Step 4: Simplify right side
    264,437.20x = 55,304,567,712.24
  5. Step 5: Solve for x
    x = 55,304,567,712.24/264,437.20
  6. Step 6: Final answer
    x = 209,140.65

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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.