Home / 352,022.49-485,875.08-208,865.61

Finding the Fourth Proportional to 352,022.49, 485,875.08 and 208,865.61

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Solution

The fourth proportional to 352,022.49, 485,875.08 and 208,865.61 is: 288,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,022.49 : 485,875.08 = 208,865.61 : x
  2. Step 2: Convert to fraction form
    352,022.49/485,875.08 = 208,865.61/x
  3. Step 3: Cross multiply
    352,022.49x = 485,875.08 × 208,865.61
  4. Step 4: Simplify right side
    352,022.49x = 101,482,594,968.00
  5. Step 5: Solve for x
    x = 101,482,594,968.00/352,022.49
  6. Step 6: Final answer
    x = 288,284.41

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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.