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Finding the Fourth Proportional to 325,900.20, 488,850.30 and 286,501.80

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Solution

The fourth proportional to 325,900.20, 488,850.30 and 286,501.80 is: 429,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,900.20 : 488,850.30 = 286,501.80 : x
  2. Step 2: Convert to fraction form
    325,900.20/488,850.30 = 286,501.80/x
  3. Step 3: Cross multiply
    325,900.20x = 488,850.30 × 286,501.80
  4. Step 4: Simplify right side
    325,900.20x = 140,056,490,880.54
  5. Step 5: Solve for x
    x = 140,056,490,880.54/325,900.20
  6. Step 6: Final answer
    x = 429,752.70

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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.