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Finding the Fourth Proportional to 235,380, 353,070 and 69,168

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Solution

The fourth proportional to 235,380, 353,070 and 69,168 is: 103,752

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,380 : 353,070 = 69,168 : x
  2. Step 2: Convert to fraction form
    235,380/353,070 = 69,168/x
  3. Step 3: Cross multiply
    235,380x = 353,070 × 69,168
  4. Step 4: Simplify right side
    235,380x = 24,421,145,760
  5. Step 5: Solve for x
    x = 24,421,145,760/235,380
  6. Step 6: Final answer
    x = 103,752

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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.