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Finding the Fourth Proportional to 346,150, 477,687 and 187,174

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Solution

The fourth proportional to 346,150, 477,687 and 187,174 is: 258,300.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,150 : 477,687 = 187,174 : x
  2. Step 2: Convert to fraction form
    346,150/477,687 = 187,174/x
  3. Step 3: Cross multiply
    346,150x = 477,687 × 187,174
  4. Step 4: Simplify right side
    346,150x = 89,410,586,538
  5. Step 5: Solve for x
    x = 89,410,586,538/346,150
  6. Step 6: Final answer
    x = 258,300.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.