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Finding the Fourth Proportional to 329,815, 455,181.15 and 186,573.79

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Solution

The fourth proportional to 329,815, 455,181.15 and 186,573.79 is: 257,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,815 : 455,181.15 = 186,573.79 : x
  2. Step 2: Convert to fraction form
    329,815/455,181.15 = 186,573.79/x
  3. Step 3: Cross multiply
    329,815x = 455,181.15 × 186,573.79
  4. Step 4: Simplify right side
    329,815x = 84,924,872,292.06
  5. Step 5: Solve for x
    x = 84,924,872,292.06/329,815
  6. Step 6: Final answer
    x = 257,492.45

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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.