Home / 205,822.96-308,731.08-65,579.68

Finding the Fourth Proportional to 205,822.96, 308,731.08 and 65,579.68

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Solution

The fourth proportional to 205,822.96, 308,731.08 and 65,579.68 is: 98,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,822.96 : 308,731.08 = 65,579.68 : x
  2. Step 2: Convert to fraction form
    205,822.96/308,731.08 = 65,579.68/x
  3. Step 3: Cross multiply
    205,822.96x = 308,731.08 × 65,579.68
  4. Step 4: Simplify right side
    205,822.96x = 20,246,485,432.45
  5. Step 5: Solve for x
    x = 20,246,485,432.45/205,822.96
  6. Step 6: Final answer
    x = 98,368.45

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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.