Home / 245,720.05-339,104.58-138,297.04

Finding the Fourth Proportional to 245,720.05, 339,104.58 and 138,297.04

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Solution

The fourth proportional to 245,720.05, 339,104.58 and 138,297.04 is: 190,856.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,720.05 : 339,104.58 = 138,297.04 : x
  2. Step 2: Convert to fraction form
    245,720.05/339,104.58 = 138,297.04/x
  3. Step 3: Cross multiply
    245,720.05x = 339,104.58 × 138,297.04
  4. Step 4: Simplify right side
    245,720.05x = 46,897,158,298.07
  5. Step 5: Solve for x
    x = 46,897,158,298.07/245,720.05
  6. Step 6: Final answer
    x = 190,856.05

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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.