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Finding the Fourth Proportional to 449,230.22, 619,939 and 245,282.90

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Solution

The fourth proportional to 449,230.22, 619,939 and 245,282.90 is: 338,491.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,230.22 : 619,939 = 245,282.90 : x
  2. Step 2: Convert to fraction form
    449,230.22/619,939 = 245,282.90/x
  3. Step 3: Cross multiply
    449,230.22x = 619,939 × 245,282.90
  4. Step 4: Simplify right side
    449,230.22x = 152,060,435,743.10
  5. Step 5: Solve for x
    x = 152,060,435,743.10/449,230.22
  6. Step 6: Final answer
    x = 338,491.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.