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Finding the Fourth Proportional to 388,892.22, 536,714.55 and 245,645.34

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Solution

The fourth proportional to 388,892.22, 536,714.55 and 245,645.34 is: 339,017.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,892.22 : 536,714.55 = 245,645.34 : x
  2. Step 2: Convert to fraction form
    388,892.22/536,714.55 = 245,645.34/x
  3. Step 3: Cross multiply
    388,892.22x = 536,714.55 × 245,645.34
  4. Step 4: Simplify right side
    388,892.22x = 131,841,428,117.70
  5. Step 5: Solve for x
    x = 131,841,428,117.70/388,892.22
  6. Step 6: Final answer
    x = 339,017.91

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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.