Home / 315,050.40-472,575.60-196,855.20

Finding the Fourth Proportional to 315,050.40, 472,575.60 and 196,855.20

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Solution

The fourth proportional to 315,050.40, 472,575.60 and 196,855.20 is: 295,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,050.40 : 472,575.60 = 196,855.20 : x
  2. Step 2: Convert to fraction form
    315,050.40/472,575.60 = 196,855.20/x
  3. Step 3: Cross multiply
    315,050.40x = 472,575.60 × 196,855.20
  4. Step 4: Simplify right side
    315,050.40x = 93,028,964,253.12
  5. Step 5: Solve for x
    x = 93,028,964,253.12/315,050.40
  6. Step 6: Final answer
    x = 295,282.80

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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.