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Finding the Fourth Proportional to 452,515.25, 678,762.34 and 227,815.31

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Solution

The fourth proportional to 452,515.25, 678,762.34 and 227,815.31 is: 341,717.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,515.25 : 678,762.34 = 227,815.31 : x
  2. Step 2: Convert to fraction form
    452,515.25/678,762.34 = 227,815.31/x
  3. Step 3: Cross multiply
    452,515.25x = 678,762.34 × 227,815.31
  4. Step 4: Simplify right side
    452,515.25x = 154,632,452,903.43
  5. Step 5: Solve for x
    x = 154,632,452,903.43/452,515.25
  6. Step 6: Final answer
    x = 341,717.66

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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.