Home / 458,103.84-687,155.72-268,852.20

Finding the Fourth Proportional to 458,103.84, 687,155.72 and 268,852.20

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Solution

The fourth proportional to 458,103.84, 687,155.72 and 268,852.20 is: 403,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,103.84 : 687,155.72 = 268,852.20 : x
  2. Step 2: Convert to fraction form
    458,103.84/687,155.72 = 268,852.20/x
  3. Step 3: Cross multiply
    458,103.84x = 687,155.72 × 268,852.20
  4. Step 4: Simplify right side
    458,103.84x = 184,743,327,064.58
  5. Step 5: Solve for x
    x = 184,743,327,064.58/458,103.84
  6. Step 6: Final answer
    x = 403,278.28

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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.