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Finding the Fourth Proportional to 389,076.52, 537,009.06 and 245,745.40

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Solution

The fourth proportional to 389,076.52, 537,009.06 and 245,745.40 is: 339,181.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,076.52 : 537,009.06 = 245,745.40 : x
  2. Step 2: Convert to fraction form
    389,076.52/537,009.06 = 245,745.40/x
  3. Step 3: Cross multiply
    389,076.52x = 537,009.06 × 245,745.40
  4. Step 4: Simplify right side
    389,076.52x = 131,967,506,253.32
  5. Step 5: Solve for x
    x = 131,967,506,253.32/389,076.52
  6. Step 6: Final answer
    x = 339,181.37

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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.