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Finding the Fourth Proportional to 212,293.72, 318,404.76 and 60,480.10

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Solution

The fourth proportional to 212,293.72, 318,404.76 and 60,480.10 is: 90,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,293.72 : 318,404.76 = 60,480.10 : x
  2. Step 2: Convert to fraction form
    212,293.72/318,404.76 = 60,480.10/x
  3. Step 3: Cross multiply
    212,293.72x = 318,404.76 × 60,480.10
  4. Step 4: Simplify right side
    212,293.72x = 19,257,151,725.28
  5. Step 5: Solve for x
    x = 19,257,151,725.28/212,293.72
  6. Step 6: Final answer
    x = 90,709.95

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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.