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Finding the Fourth Proportional to 339,102, 508,653 and 117,486

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Solution

The fourth proportional to 339,102, 508,653 and 117,486 is: 176,229

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,102 : 508,653 = 117,486 : x
  2. Step 2: Convert to fraction form
    339,102/508,653 = 117,486/x
  3. Step 3: Cross multiply
    339,102x = 508,653 × 117,486
  4. Step 4: Simplify right side
    339,102x = 59,759,606,358
  5. Step 5: Solve for x
    x = 59,759,606,358/339,102
  6. Step 6: Final answer
    x = 176,229

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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.