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Finding the Fourth Proportional to 354,364.16, 531,455.68 and 104,987.84

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Solution

The fourth proportional to 354,364.16, 531,455.68 and 104,987.84 is: 157,454.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,364.16 : 531,455.68 = 104,987.84 : x
  2. Step 2: Convert to fraction form
    354,364.16/531,455.68 = 104,987.84/x
  3. Step 3: Cross multiply
    354,364.16x = 531,455.68 × 104,987.84
  4. Step 4: Simplify right side
    354,364.16x = 55,796,383,898.93
  5. Step 5: Solve for x
    x = 55,796,383,898.93/354,364.16
  6. Step 6: Final answer
    x = 157,454.93

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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.