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Finding the Fourth Proportional to 492,750.80, 738,953.40 and 256,014.80

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Solution

The fourth proportional to 492,750.80, 738,953.40 and 256,014.80 is: 383,932.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,750.80 : 738,953.40 = 256,014.80 : x
  2. Step 2: Convert to fraction form
    492,750.80/738,953.40 = 256,014.80/x
  3. Step 3: Cross multiply
    492,750.80x = 738,953.40 × 256,014.80
  4. Step 4: Simplify right side
    492,750.80x = 189,183,006,910.32
  5. Step 5: Solve for x
    x = 189,183,006,910.32/492,750.80
  6. Step 6: Final answer
    x = 383,932.42

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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.