Home / 245,715.92-339,105.12-138,296.24

Finding the Fourth Proportional to 245,715.92, 339,105.12 and 138,296.24

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Solution

The fourth proportional to 245,715.92, 339,105.12 and 138,296.24 is: 190,858.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,715.92 : 339,105.12 = 138,296.24 : x
  2. Step 2: Convert to fraction form
    245,715.92/339,105.12 = 138,296.24/x
  3. Step 3: Cross multiply
    245,715.92x = 339,105.12 × 138,296.24
  4. Step 4: Simplify right side
    245,715.92x = 46,896,963,060.75
  5. Step 5: Solve for x
    x = 46,896,963,060.75/245,715.92
  6. Step 6: Final answer
    x = 190,858.46

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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.