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Finding the Fourth Proportional to 208,208.16, 312,286.32 and 67,955.04

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Solution

The fourth proportional to 208,208.16, 312,286.32 and 67,955.04 is: 101,924.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,208.16 : 312,286.32 = 67,955.04 : x
  2. Step 2: Convert to fraction form
    208,208.16/312,286.32 = 67,955.04/x
  3. Step 3: Cross multiply
    208,208.16x = 312,286.32 × 67,955.04
  4. Step 4: Simplify right side
    208,208.16x = 21,221,429,367.05
  5. Step 5: Solve for x
    x = 21,221,429,367.05/208,208.16
  6. Step 6: Final answer
    x = 101,924.10

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1.5x scale

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.