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Finding the Fourth Proportional to 543,578.64, 815,273.18 and 144,259.77

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Solution

The fourth proportional to 543,578.64, 815,273.18 and 144,259.77 is: 216,364.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,578.64 : 815,273.18 = 144,259.77 : x
  2. Step 2: Convert to fraction form
    543,578.64/815,273.18 = 144,259.77/x
  3. Step 3: Cross multiply
    543,578.64x = 815,273.18 × 144,259.77
  4. Step 4: Simplify right side
    543,578.64x = 117,611,121,433.97
  5. Step 5: Solve for x
    x = 117,611,121,433.97/543,578.64
  6. Step 6: Final answer
    x = 216,364.50

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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.