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Finding the Fourth Proportional to 264,350.40, 396,525.60 and 139,934.40

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Solution

The fourth proportional to 264,350.40, 396,525.60 and 139,934.40 is: 209,901.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,350.40 : 396,525.60 = 139,934.40 : x
  2. Step 2: Convert to fraction form
    264,350.40/396,525.60 = 139,934.40/x
  3. Step 3: Cross multiply
    264,350.40x = 396,525.60 × 139,934.40
  4. Step 4: Simplify right side
    264,350.40x = 55,487,571,920.64
  5. Step 5: Solve for x
    x = 55,487,571,920.64/264,350.40
  6. Step 6: Final answer
    x = 209,901.60

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1.5x scale

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.