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Finding the Fourth Proportional to 286,837.52, 430,109.40 and 168,544.40

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Solution

The fourth proportional to 286,837.52, 430,109.40 and 168,544.40 is: 252,730.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,837.52 : 430,109.40 = 168,544.40 : x
  2. Step 2: Convert to fraction form
    286,837.52/430,109.40 = 168,544.40/x
  3. Step 3: Cross multiply
    286,837.52x = 430,109.40 × 168,544.40
  4. Step 4: Simplify right side
    286,837.52x = 72,492,530,757.36
  5. Step 5: Solve for x
    x = 72,492,530,757.36/286,837.52
  6. Step 6: Final answer
    x = 252,730.29

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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.