Home / 245,754.32-339,140.13-138,324.29

Finding the Fourth Proportional to 245,754.32, 339,140.13 and 138,324.29

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Solution

The fourth proportional to 245,754.32, 339,140.13 and 138,324.29 is: 190,887.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,754.32 : 339,140.13 = 138,324.29 : x
  2. Step 2: Convert to fraction form
    245,754.32/339,140.13 = 138,324.29/x
  3. Step 3: Cross multiply
    245,754.32x = 339,140.13 × 138,324.29
  4. Step 4: Simplify right side
    245,754.32x = 46,911,317,692.76
  5. Step 5: Solve for x
    x = 46,911,317,692.76/245,754.32
  6. Step 6: Final answer
    x = 190,887.05

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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.