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Finding the Fourth Proportional to 351,410.84, 484,915.72 and 208,147.76

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Solution

The fourth proportional to 351,410.84, 484,915.72 and 208,147.76 is: 287,225.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,410.84 : 484,915.72 = 208,147.76 : x
  2. Step 2: Convert to fraction form
    351,410.84/484,915.72 = 208,147.76/x
  3. Step 3: Cross multiply
    351,410.84x = 484,915.72 × 208,147.76
  4. Step 4: Simplify right side
    351,410.84x = 100,934,120,906.79
  5. Step 5: Solve for x
    x = 100,934,120,906.79/351,410.84
  6. Step 6: Final answer
    x = 287,225.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.