Home / 643,166.14-964,894.77-216,690.38

Finding the Fourth Proportional to 643,166.14, 964,894.77 and 216,690.38

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Solution

The fourth proportional to 643,166.14, 964,894.77 and 216,690.38 is: 325,084.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,166.14 : 964,894.77 = 216,690.38 : x
  2. Step 2: Convert to fraction form
    643,166.14/964,894.77 = 216,690.38/x
  3. Step 3: Cross multiply
    643,166.14x = 964,894.77 × 216,690.38
  4. Step 4: Simplify right side
    643,166.14x = 209,083,415,574.24
  5. Step 5: Solve for x
    x = 209,083,415,574.24/643,166.14
  6. Step 6: Final answer
    x = 325,084.61

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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.