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Finding the Fourth Proportional to 346,272, 477,856.32 and 187,296

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Solution

The fourth proportional to 346,272, 477,856.32 and 187,296 is: 258,469.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,272 : 477,856.32 = 187,296 : x
  2. Step 2: Convert to fraction form
    346,272/477,856.32 = 187,296/x
  3. Step 3: Cross multiply
    346,272x = 477,856.32 × 187,296
  4. Step 4: Simplify right side
    346,272x = 89,500,577,310.72
  5. Step 5: Solve for x
    x = 89,500,577,310.72/346,272
  6. Step 6: Final answer
    x = 258,469.00

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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.