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Finding the Fourth Proportional to 282,404.20, 422,915.10 and 134,487.40

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Solution

The fourth proportional to 282,404.20, 422,915.10 and 134,487.40 is: 201,401.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,404.20 : 422,915.10 = 134,487.40 : x
  2. Step 2: Convert to fraction form
    282,404.20/422,915.10 = 134,487.40/x
  3. Step 3: Cross multiply
    282,404.20x = 422,915.10 × 134,487.40
  4. Step 4: Simplify right side
    282,404.20x = 56,876,752,219.74
  5. Step 5: Solve for x
    x = 56,876,752,219.74/282,404.20
  6. Step 6: Final answer
    x = 201,401.93

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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.