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Finding the Fourth Proportional to 321,125.60, 481,688.40 and 96,520.70

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Solution

The fourth proportional to 321,125.60, 481,688.40 and 96,520.70 is: 144,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,125.60 : 481,688.40 = 96,520.70 : x
  2. Step 2: Convert to fraction form
    321,125.60/481,688.40 = 96,520.70/x
  3. Step 3: Cross multiply
    321,125.60x = 481,688.40 × 96,520.70
  4. Step 4: Simplify right side
    321,125.60x = 46,492,901,549.88
  5. Step 5: Solve for x
    x = 46,492,901,549.88/321,125.60
  6. Step 6: Final answer
    x = 144,781.05

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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.