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Finding the Fourth Proportional to 353,954.43, 531,009.36 and 260,175.87

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Solution

The fourth proportional to 353,954.43, 531,009.36 and 260,175.87 is: 390,320.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,954.43 : 531,009.36 = 260,175.87 : x
  2. Step 2: Convert to fraction form
    353,954.43/531,009.36 = 260,175.87/x
  3. Step 3: Cross multiply
    353,954.43x = 531,009.36 × 260,175.87
  4. Step 4: Simplify right side
    353,954.43x = 138,155,822,216.14
  5. Step 5: Solve for x
    x = 138,155,822,216.14/353,954.43
  6. Step 6: Final answer
    x = 390,320.93

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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.