Home / 245,658.06-339,007.50-138,228.30

Finding the Fourth Proportional to 245,658.06, 339,007.50 and 138,228.30

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Solution

The fourth proportional to 245,658.06, 339,007.50 and 138,228.30 is: 190,754.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,658.06 : 339,007.50 = 138,228.30 : x
  2. Step 2: Convert to fraction form
    245,658.06/339,007.50 = 138,228.30/x
  3. Step 3: Cross multiply
    245,658.06x = 339,007.50 × 138,228.30
  4. Step 4: Simplify right side
    245,658.06x = 46,860,430,412.25
  5. Step 5: Solve for x
    x = 46,860,430,412.25/245,658.06
  6. Step 6: Final answer
    x = 190,754.70

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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.