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Finding the Fourth Proportional to 279,270.78, 418,528.44 and 200,210.46

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Solution

The fourth proportional to 279,270.78, 418,528.44 and 200,210.46 is: 300,044.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,270.78 : 418,528.44 = 200,210.46 : x
  2. Step 2: Convert to fraction form
    279,270.78/418,528.44 = 200,210.46/x
  3. Step 3: Cross multiply
    279,270.78x = 418,528.44 × 200,210.46
  4. Step 4: Simplify right side
    279,270.78x = 83,793,771,495.48
  5. Step 5: Solve for x
    x = 83,793,771,495.48/279,270.78
  6. Step 6: Final answer
    x = 300,044.89

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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.