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Finding the Fourth Proportional to 351,063.62, 484,465.80 and 189,918.20

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Solution

The fourth proportional to 351,063.62, 484,465.80 and 189,918.20 is: 262,086.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,063.62 : 484,465.80 = 189,918.20 : x
  2. Step 2: Convert to fraction form
    351,063.62/484,465.80 = 189,918.20/x
  3. Step 3: Cross multiply
    351,063.62x = 484,465.80 × 189,918.20
  4. Step 4: Simplify right side
    351,063.62x = 92,008,872,697.56
  5. Step 5: Solve for x
    x = 92,008,872,697.56/351,063.62
  6. Step 6: Final answer
    x = 262,086.04

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1.5x scale

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.