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Finding the Fourth Proportional to 351,654.93, 485,283.21 and 190,514.07

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Solution

The fourth proportional to 351,654.93, 485,283.21 and 190,514.07 is: 262,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,654.93 : 485,283.21 = 190,514.07 : x
  2. Step 2: Convert to fraction form
    351,654.93/485,283.21 = 190,514.07/x
  3. Step 3: Cross multiply
    351,654.93x = 485,283.21 × 190,514.07
  4. Step 4: Simplify right side
    351,654.93x = 92,453,279,439.76
  5. Step 5: Solve for x
    x = 92,453,279,439.76/351,654.93
  6. Step 6: Final answer
    x = 262,909.10

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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.