Home / 426,162.88-639,040.08-201,336.16

Finding the Fourth Proportional to 426,162.88, 639,040.08 and 201,336.16

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Solution

The fourth proportional to 426,162.88, 639,040.08 and 201,336.16 is: 301,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,162.88 : 639,040.08 = 201,336.16 : x
  2. Step 2: Convert to fraction form
    426,162.88/639,040.08 = 201,336.16/x
  3. Step 3: Cross multiply
    426,162.88x = 639,040.08 × 201,336.16
  4. Step 4: Simplify right side
    426,162.88x = 128,661,875,793.29
  5. Step 5: Solve for x
    x = 128,661,875,793.29/426,162.88
  6. Step 6: Final answer
    x = 301,907.75

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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.