Home / 245,837.07-339,261.57-138,411.05

Finding the Fourth Proportional to 245,837.07, 339,261.57 and 138,411.05

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Solution

The fourth proportional to 245,837.07, 339,261.57 and 138,411.05 is: 191,010.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,837.07 : 339,261.57 = 138,411.05 : x
  2. Step 2: Convert to fraction form
    245,837.07/339,261.57 = 138,411.05/x
  3. Step 3: Cross multiply
    245,837.07x = 339,261.57 × 138,411.05
  4. Step 4: Simplify right side
    245,837.07x = 46,957,548,432.04
  5. Step 5: Solve for x
    x = 46,957,548,432.04/245,837.07
  6. Step 6: Final answer
    x = 191,010.85

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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.