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Finding the Fourth Proportional to 379,001.60, 568,403.40 and 112,690.40

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Solution

The fourth proportional to 379,001.60, 568,403.40 and 112,690.40 is: 169,006.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,001.60 : 568,403.40 = 112,690.40 : x
  2. Step 2: Convert to fraction form
    379,001.60/568,403.40 = 112,690.40/x
  3. Step 3: Cross multiply
    379,001.60x = 568,403.40 × 112,690.40
  4. Step 4: Simplify right side
    379,001.60x = 64,053,606,507.36
  5. Step 5: Solve for x
    x = 64,053,606,507.36/379,001.60
  6. Step 6: Final answer
    x = 169,006.16

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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.