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Finding the Fourth Proportional to 348,054.60, 522,081.90 and 305,200.20

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Solution

The fourth proportional to 348,054.60, 522,081.90 and 305,200.20 is: 457,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,054.60 : 522,081.90 = 305,200.20 : x
  2. Step 2: Convert to fraction form
    348,054.60/522,081.90 = 305,200.20/x
  3. Step 3: Cross multiply
    348,054.60x = 522,081.90 × 305,200.20
  4. Step 4: Simplify right side
    348,054.60x = 159,339,500,296.38
  5. Step 5: Solve for x
    x = 159,339,500,296.38/348,054.60
  6. Step 6: Final answer
    x = 457,800.30

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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.