Home / 347,745.80-521,618.70-268,916.60

Finding the Fourth Proportional to 347,745.80, 521,618.70 and 268,916.60

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Solution

The fourth proportional to 347,745.80, 521,618.70 and 268,916.60 is: 403,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,745.80 : 521,618.70 = 268,916.60 : x
  2. Step 2: Convert to fraction form
    347,745.80/521,618.70 = 268,916.60/x
  3. Step 3: Cross multiply
    347,745.80x = 521,618.70 × 268,916.60
  4. Step 4: Simplify right side
    347,745.80x = 140,271,927,300.42
  5. Step 5: Solve for x
    x = 140,271,927,300.42/347,745.80
  6. Step 6: Final answer
    x = 403,374.90

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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.