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Finding the Fourth Proportional to 200,029.70, 300,044.55 and 178,256.90

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Solution

The fourth proportional to 200,029.70, 300,044.55 and 178,256.90 is: 267,385.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,029.70 : 300,044.55 = 178,256.90 : x
  2. Step 2: Convert to fraction form
    200,029.70/300,044.55 = 178,256.90/x
  3. Step 3: Cross multiply
    200,029.70x = 300,044.55 × 178,256.90
  4. Step 4: Simplify right side
    200,029.70x = 53,485,011,344.90
  5. Step 5: Solve for x
    x = 53,485,011,344.90/200,029.70
  6. Step 6: Final answer
    x = 267,385.35

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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.