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Finding the Fourth Proportional to 208,152.24, 312,260.88 and 67,878.24

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Solution

The fourth proportional to 208,152.24, 312,260.88 and 67,878.24 is: 101,827.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,152.24 : 312,260.88 = 67,878.24 : x
  2. Step 2: Convert to fraction form
    208,152.24/312,260.88 = 67,878.24/x
  3. Step 3: Cross multiply
    208,152.24x = 312,260.88 × 67,878.24
  4. Step 4: Simplify right side
    208,152.24x = 21,195,718,955.25
  5. Step 5: Solve for x
    x = 21,195,718,955.25/208,152.24
  6. Step 6: Final answer
    x = 101,827.96

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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.