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Finding the Fourth Proportional to 355,397.31, 532,636.70 and 265,949.01

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Solution

The fourth proportional to 355,397.31, 532,636.70 and 265,949.01 is: 398,579.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,397.31 : 532,636.70 = 265,949.01 : x
  2. Step 2: Convert to fraction form
    355,397.31/532,636.70 = 265,949.01/x
  3. Step 3: Cross multiply
    355,397.31x = 532,636.70 × 265,949.01
  4. Step 4: Simplify right side
    355,397.31x = 141,654,201,724.92
  5. Step 5: Solve for x
    x = 141,654,201,724.92/355,397.31
  6. Step 6: Final answer
    x = 398,579.84

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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.