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Finding the Fourth Proportional to 306,510.57, 422,973.98 and 168,676.65

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Solution

The fourth proportional to 306,510.57, 422,973.98 and 168,676.65 is: 232,767.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,510.57 : 422,973.98 = 168,676.65 : x
  2. Step 2: Convert to fraction form
    306,510.57/422,973.98 = 168,676.65/x
  3. Step 3: Cross multiply
    306,510.57x = 422,973.98 × 168,676.65
  4. Step 4: Simplify right side
    306,510.57x = 71,345,833,140.18
  5. Step 5: Solve for x
    x = 71,345,833,140.18/306,510.57
  6. Step 6: Final answer
    x = 232,767.94

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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.