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Finding the Fourth Proportional to 284,270.64, 426,315.24 and 115,790.64

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Solution

The fourth proportional to 284,270.64, 426,315.24 and 115,790.64 is: 173,649.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,270.64 : 426,315.24 = 115,790.64 : x
  2. Step 2: Convert to fraction form
    284,270.64/426,315.24 = 115,790.64/x
  3. Step 3: Cross multiply
    284,270.64x = 426,315.24 × 115,790.64
  4. Step 4: Simplify right side
    284,270.64x = 49,363,314,481.35
  5. Step 5: Solve for x
    x = 49,363,314,481.35/284,270.64
  6. Step 6: Final answer
    x = 173,649.01

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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.