Home / 245,887.20-339,342.48-138,468.96

Finding the Fourth Proportional to 245,887.20, 339,342.48 and 138,468.96

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Solution

The fourth proportional to 245,887.20, 339,342.48 and 138,468.96 is: 191,097.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,887.20 : 339,342.48 = 138,468.96 : x
  2. Step 2: Convert to fraction form
    245,887.20/339,342.48 = 138,468.96/x
  3. Step 3: Cross multiply
    245,887.20x = 339,342.48 × 138,468.96
  4. Step 4: Simplify right side
    245,887.20x = 46,988,400,289.42
  5. Step 5: Solve for x
    x = 46,988,400,289.42/245,887.20
  6. Step 6: Final answer
    x = 191,097.38

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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.