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Finding the Fourth Proportional to 449,686.92, 620,603.33 and 256,102.82

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Solution

The fourth proportional to 449,686.92, 620,603.33 and 256,102.82 is: 353,442.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,686.92 : 620,603.33 = 256,102.82 : x
  2. Step 2: Convert to fraction form
    449,686.92/620,603.33 = 256,102.82/x
  3. Step 3: Cross multiply
    449,686.92x = 620,603.33 × 256,102.82
  4. Step 4: Simplify right side
    449,686.92x = 158,938,258,530.86
  5. Step 5: Solve for x
    x = 158,938,258,530.86/449,686.92
  6. Step 6: Final answer
    x = 353,442.03

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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.