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Finding the Fourth Proportional to 288,980.20, 432,887.10 and 200,333.80

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Solution

The fourth proportional to 288,980.20, 432,887.10 and 200,333.80 is: 300,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,980.20 : 432,887.10 = 200,333.80 : x
  2. Step 2: Convert to fraction form
    288,980.20/432,887.10 = 200,333.80/x
  3. Step 3: Cross multiply
    288,980.20x = 432,887.10 × 200,333.80
  4. Step 4: Simplify right side
    288,980.20x = 86,721,917,713.98
  5. Step 5: Solve for x
    x = 86,721,917,713.98/288,980.20
  6. Step 6: Final answer
    x = 300,096.40

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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.