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Finding the Fourth Proportional to 245,979.52, 368,969.55 and 68,486.92

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Solution

The fourth proportional to 245,979.52, 368,969.55 and 68,486.92 is: 102,730.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,979.52 : 368,969.55 = 68,486.92 : x
  2. Step 2: Convert to fraction form
    245,979.52/368,969.55 = 68,486.92/x
  3. Step 3: Cross multiply
    245,979.52x = 368,969.55 × 68,486.92
  4. Step 4: Simplify right side
    245,979.52x = 25,269,588,053.29
  5. Step 5: Solve for x
    x = 25,269,588,053.29/245,979.52
  6. Step 6: Final answer
    x = 102,730.46

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1.5x scale

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.