Home / 245,570.10-338,883.28-138,140.27

Finding the Fourth Proportional to 245,570.10, 338,883.28 and 138,140.27

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Solution

The fourth proportional to 245,570.10, 338,883.28 and 138,140.27 is: 190,631.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,570.10 : 338,883.28 = 138,140.27 : x
  2. Step 2: Convert to fraction form
    245,570.10/338,883.28 = 138,140.27/x
  3. Step 3: Cross multiply
    245,570.10x = 338,883.28 × 138,140.27
  4. Step 4: Simplify right side
    245,570.10x = 46,813,427,028.73
  5. Step 5: Solve for x
    x = 46,813,427,028.73/245,570.10
  6. Step 6: Final answer
    x = 190,631.63

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1.5x scale

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.