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Finding the Fourth Proportional to 325,475.20, 488,126.40 and 100,835.20

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Solution

The fourth proportional to 325,475.20, 488,126.40 and 100,835.20 is: 151,226.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,475.20 : 488,126.40 = 100,835.20 : x
  2. Step 2: Convert to fraction form
    325,475.20/488,126.40 = 100,835.20/x
  3. Step 3: Cross multiply
    325,475.20x = 488,126.40 × 100,835.20
  4. Step 4: Simplify right side
    325,475.20x = 49,220,323,169.28
  5. Step 5: Solve for x
    x = 49,220,323,169.28/325,475.20
  6. Step 6: Final answer
    x = 151,226.03

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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.