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Finding the Fourth Proportional to 288,664.70, 432,997.05 and 131,200.70

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Solution

The fourth proportional to 288,664.70, 432,997.05 and 131,200.70 is: 196,801.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,664.70 : 432,997.05 = 131,200.70 : x
  2. Step 2: Convert to fraction form
    288,664.70/432,997.05 = 131,200.70/x
  3. Step 3: Cross multiply
    288,664.70x = 432,997.05 × 131,200.70
  4. Step 4: Simplify right side
    288,664.70x = 56,809,516,057.94
  5. Step 5: Solve for x
    x = 56,809,516,057.94/288,664.70
  6. Step 6: Final answer
    x = 196,801.05

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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.