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Finding the Fourth Proportional to 208,306.28, 312,569.58 and 113,604.68

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Solution

The fourth proportional to 208,306.28, 312,569.58 and 113,604.68 is: 170,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,306.28 : 312,569.58 = 113,604.68 : x
  2. Step 2: Convert to fraction form
    208,306.28/312,569.58 = 113,604.68/x
  3. Step 3: Cross multiply
    208,306.28x = 312,569.58 × 113,604.68
  4. Step 4: Simplify right side
    208,306.28x = 35,509,367,113.63
  5. Step 5: Solve for x
    x = 35,509,367,113.63/208,306.28
  6. Step 6: Final answer
    x = 170,467.10

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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.