Home / 268,886.90-403,579.72-135,860.58

Finding the Fourth Proportional to 268,886.90, 403,579.72 and 135,860.58

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Solution

The fourth proportional to 268,886.90, 403,579.72 and 135,860.58 is: 203,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,886.90 : 403,579.72 = 135,860.58 : x
  2. Step 2: Convert to fraction form
    268,886.90/403,579.72 = 135,860.58/x
  3. Step 3: Cross multiply
    268,886.90x = 403,579.72 × 135,860.58
  4. Step 4: Simplify right side
    268,886.90x = 54,830,574,835.44
  5. Step 5: Solve for x
    x = 54,830,574,835.44/268,886.90
  6. Step 6: Final answer
    x = 203,916.87

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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.