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Finding the Fourth Proportional to 259,998.16, 358,450.50 and 206,460.40

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Solution

The fourth proportional to 259,998.16, 358,450.50 and 206,460.40 is: 284,639.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,998.16 : 358,450.50 = 206,460.40 : x
  2. Step 2: Convert to fraction form
    259,998.16/358,450.50 = 206,460.40/x
  3. Step 3: Cross multiply
    259,998.16x = 358,450.50 × 206,460.40
  4. Step 4: Simplify right side
    259,998.16x = 74,005,833,610.20
  5. Step 5: Solve for x
    x = 74,005,833,610.20/259,998.16
  6. Step 6: Final answer
    x = 284,639.84

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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.