Home / 245,656.28-339,003.47-138,224.16

Finding the Fourth Proportional to 245,656.28, 339,003.47 and 138,224.16

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Solution

The fourth proportional to 245,656.28, 339,003.47 and 138,224.16 is: 190,748.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,656.28 : 339,003.47 = 138,224.16 : x
  2. Step 2: Convert to fraction form
    245,656.28/339,003.47 = 138,224.16/x
  3. Step 3: Cross multiply
    245,656.28x = 339,003.47 × 138,224.16
  4. Step 4: Simplify right side
    245,656.28x = 46,858,469,186.71
  5. Step 5: Solve for x
    x = 46,858,469,186.71/245,656.28
  6. Step 6: Final answer
    x = 190,748.11

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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.