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Finding the Fourth Proportional to 259,995.66, 358,447.05 and 206,457.90

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Solution

The fourth proportional to 259,995.66, 358,447.05 and 206,457.90 is: 284,636.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,995.66 : 358,447.05 = 206,457.90 : x
  2. Step 2: Convert to fraction form
    259,995.66/358,447.05 = 206,457.90/x
  3. Step 3: Cross multiply
    259,995.66x = 358,447.05 × 206,457.90
  4. Step 4: Simplify right side
    259,995.66x = 74,004,225,204.20
  5. Step 5: Solve for x
    x = 74,004,225,204.20/259,995.66
  6. Step 6: Final answer
    x = 284,636.39

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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.