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Finding the Fourth Proportional to 353,815.44, 488,186.28 and 296,685.84

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Solution

The fourth proportional to 353,815.44, 488,186.28 and 296,685.84 is: 409,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,815.44 : 488,186.28 = 296,685.84 : x
  2. Step 2: Convert to fraction form
    353,815.44/488,186.28 = 296,685.84/x
  3. Step 3: Cross multiply
    353,815.44x = 488,186.28 × 296,685.84
  4. Step 4: Simplify right side
    353,815.44x = 144,837,956,558.28
  5. Step 5: Solve for x
    x = 144,837,956,558.28/353,815.44
  6. Step 6: Final answer
    x = 409,360.19

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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.