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Finding the Fourth Proportional to 116,460, 174,690 and 28,908

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Solution

The fourth proportional to 116,460, 174,690 and 28,908 is: 43,362

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,460 : 174,690 = 28,908 : x
  2. Step 2: Convert to fraction form
    116,460/174,690 = 28,908/x
  3. Step 3: Cross multiply
    116,460x = 174,690 × 28,908
  4. Step 4: Simplify right side
    116,460x = 5,049,938,520
  5. Step 5: Solve for x
    x = 5,049,938,520/116,460
  6. Step 6: Final answer
    x = 43,362

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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.