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Finding the Fourth Proportional to 284,410.08, 392,483.58 and 155,348.64

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Solution

The fourth proportional to 284,410.08, 392,483.58 and 155,348.64 is: 214,379.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,410.08 : 392,483.58 = 155,348.64 : x
  2. Step 2: Convert to fraction form
    284,410.08/392,483.58 = 155,348.64/x
  3. Step 3: Cross multiply
    284,410.08x = 392,483.58 × 155,348.64
  4. Step 4: Simplify right side
    284,410.08x = 60,971,790,375.33
  5. Step 5: Solve for x
    x = 60,971,790,375.33/284,410.08
  6. Step 6: Final answer
    x = 214,379.85

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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.