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Finding the Fourth Proportional to 490,497.90, 736,216.65 and 254,010.30

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Solution

The fourth proportional to 490,497.90, 736,216.65 and 254,010.30 is: 381,258.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,497.90 : 736,216.65 = 254,010.30 : x
  2. Step 2: Convert to fraction form
    490,497.90/736,216.65 = 254,010.30/x
  3. Step 3: Cross multiply
    490,497.90x = 736,216.65 × 254,010.30
  4. Step 4: Simplify right side
    490,497.90x = 187,006,612,131.50
  5. Step 5: Solve for x
    x = 187,006,612,131.50/490,497.90
  6. Step 6: Final answer
    x = 381,258.74

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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.