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Finding the Fourth Proportional to 533,405.32, 800,283.18 and 218,127.40

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Solution

The fourth proportional to 533,405.32, 800,283.18 and 218,127.40 is: 327,262.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,405.32 : 800,283.18 = 218,127.40 : x
  2. Step 2: Convert to fraction form
    533,405.32/800,283.18 = 218,127.40/x
  3. Step 3: Cross multiply
    533,405.32x = 800,283.18 × 218,127.40
  4. Step 4: Simplify right side
    533,405.32x = 174,563,689,317.13
  5. Step 5: Solve for x
    x = 174,563,689,317.13/533,405.32
  6. Step 6: Final answer
    x = 327,262.75

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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.