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Finding the Fourth Proportional to 316,548.92, 436,834.80 and 171,354

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Solution

The fourth proportional to 316,548.92, 436,834.80 and 171,354 is: 236,467.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,548.92 : 436,834.80 = 171,354 : x
  2. Step 2: Convert to fraction form
    316,548.92/436,834.80 = 171,354/x
  3. Step 3: Cross multiply
    316,548.92x = 436,834.80 × 171,354
  4. Step 4: Simplify right side
    316,548.92x = 74,853,390,319.20
  5. Step 5: Solve for x
    x = 74,853,390,319.20/316,548.92
  6. Step 6: Final answer
    x = 236,467.05

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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.