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Finding the Fourth Proportional to 449,151.03, 619,837.80 and 245,210.54

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Solution

The fourth proportional to 449,151.03, 619,837.80 and 245,210.54 is: 338,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,151.03 : 619,837.80 = 245,210.54 : x
  2. Step 2: Convert to fraction form
    449,151.03/619,837.80 = 245,210.54/x
  3. Step 3: Cross multiply
    449,151.03x = 619,837.80 × 245,210.54
  4. Step 4: Simplify right side
    449,151.03x = 151,990,761,650.41
  5. Step 5: Solve for x
    x = 151,990,761,650.41/449,151.03
  6. Step 6: Final answer
    x = 338,395.67

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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.