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Finding the Fourth Proportional to 352,188.20, 527,504.70 and 289,980.20

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Solution

The fourth proportional to 352,188.20, 527,504.70 and 289,980.20 is: 434,330.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,188.20 : 527,504.70 = 289,980.20 : x
  2. Step 2: Convert to fraction form
    352,188.20/527,504.70 = 289,980.20/x
  3. Step 3: Cross multiply
    352,188.20x = 527,504.70 × 289,980.20
  4. Step 4: Simplify right side
    352,188.20x = 152,965,918,406.94
  5. Step 5: Solve for x
    x = 152,965,918,406.94/352,188.20
  6. Step 6: Final answer
    x = 434,330.05

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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.