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Finding the Fourth Proportional to 358,404.08, 494,432.16 and 214,915.28

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Solution

The fourth proportional to 358,404.08, 494,432.16 and 214,915.28 is: 296,483.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,404.08 : 494,432.16 = 214,915.28 : x
  2. Step 2: Convert to fraction form
    358,404.08/494,432.16 = 214,915.28/x
  3. Step 3: Cross multiply
    358,404.08x = 494,432.16 × 214,915.28
  4. Step 4: Simplify right side
    358,404.08x = 106,261,026,107.41
  5. Step 5: Solve for x
    x = 106,261,026,107.41/358,404.08
  6. Step 6: Final answer
    x = 296,483.86

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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.