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Finding the Fourth Proportional to 325,366.20, 488,049.30 and 286,000.20

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Solution

The fourth proportional to 325,366.20, 488,049.30 and 286,000.20 is: 429,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,366.20 : 488,049.30 = 286,000.20 : x
  2. Step 2: Convert to fraction form
    325,366.20/488,049.30 = 286,000.20/x
  3. Step 3: Cross multiply
    325,366.20x = 488,049.30 × 286,000.20
  4. Step 4: Simplify right side
    325,366.20x = 139,582,197,409.86
  5. Step 5: Solve for x
    x = 139,582,197,409.86/325,366.20
  6. Step 6: Final answer
    x = 429,000.30

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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.