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Finding the Fourth Proportional to 351,088.26, 484,505.31 and 189,946.77

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Solution

The fourth proportional to 351,088.26, 484,505.31 and 189,946.77 is: 262,128.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,088.26 : 484,505.31 = 189,946.77 : x
  2. Step 2: Convert to fraction form
    351,088.26/484,505.31 = 189,946.77/x
  3. Step 3: Cross multiply
    351,088.26x = 484,505.31 × 189,946.77
  4. Step 4: Simplify right side
    351,088.26x = 92,030,218,682.35
  5. Step 5: Solve for x
    x = 92,030,218,682.35/351,088.26
  6. Step 6: Final answer
    x = 262,128.44

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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.