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Finding the Fourth Proportional to 284,156.40, 426,234.60 and 179,439.60

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Solution

The fourth proportional to 284,156.40, 426,234.60 and 179,439.60 is: 269,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,156.40 : 426,234.60 = 179,439.60 : x
  2. Step 2: Convert to fraction form
    284,156.40/426,234.60 = 179,439.60/x
  3. Step 3: Cross multiply
    284,156.40x = 426,234.60 × 179,439.60
  4. Step 4: Simplify right side
    284,156.40x = 76,483,366,130.16
  5. Step 5: Solve for x
    x = 76,483,366,130.16/284,156.40
  6. Step 6: Final answer
    x = 269,159.40

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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.