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Finding the Fourth Proportional to 268,907.40, 403,361.10 and 180,433.80

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Solution

The fourth proportional to 268,907.40, 403,361.10 and 180,433.80 is: 270,650.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,907.40 : 403,361.10 = 180,433.80 : x
  2. Step 2: Convert to fraction form
    268,907.40/403,361.10 = 180,433.80/x
  3. Step 3: Cross multiply
    268,907.40x = 403,361.10 × 180,433.80
  4. Step 4: Simplify right side
    268,907.40x = 72,779,976,045.18
  5. Step 5: Solve for x
    x = 72,779,976,045.18/268,907.40
  6. Step 6: Final answer
    x = 270,650.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.