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Finding the Fourth Proportional to 356,544.40, 492,044.94 and 203,607.52

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Solution

The fourth proportional to 356,544.40, 492,044.94 and 203,607.52 is: 280,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,544.40 : 492,044.94 = 203,607.52 : x
  2. Step 2: Convert to fraction form
    356,544.40/492,044.94 = 203,607.52/x
  3. Step 3: Cross multiply
    356,544.40x = 492,044.94 × 203,607.52
  4. Step 4: Simplify right side
    356,544.40x = 100,184,049,961.95
  5. Step 5: Solve for x
    x = 100,184,049,961.95/356,544.40
  6. Step 6: Final answer
    x = 280,986.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.