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Finding the Fourth Proportional to 540,398.63, 810,474.69 and 203,474.81

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Solution

The fourth proportional to 540,398.63, 810,474.69 and 203,474.81 is: 305,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,398.63 : 810,474.69 = 203,474.81 : x
  2. Step 2: Convert to fraction form
    540,398.63/810,474.69 = 203,474.81/x
  3. Step 3: Cross multiply
    540,398.63x = 810,474.69 × 203,474.81
  4. Step 4: Simplify right side
    540,398.63x = 164,911,183,557.56
  5. Step 5: Solve for x
    x = 164,911,183,557.56/540,398.63
  6. Step 6: Final answer
    x = 305,165.81

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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.