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Finding the Fourth Proportional to 368,037.92, 507,858 and 206,878.88

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Solution

The fourth proportional to 368,037.92, 507,858 and 206,878.88 is: 285,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,037.92 : 507,858 = 206,878.88 : x
  2. Step 2: Convert to fraction form
    368,037.92/507,858 = 206,878.88/x
  3. Step 3: Cross multiply
    368,037.92x = 507,858 × 206,878.88
  4. Step 4: Simplify right side
    368,037.92x = 105,065,094,239.04
  5. Step 5: Solve for x
    x = 105,065,094,239.04/368,037.92
  6. Step 6: Final answer
    x = 285,473.56

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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.