Home / 245,111.70-338,201.67-143,090.86

Finding the Fourth Proportional to 245,111.70, 338,201.67 and 143,090.86

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Solution

The fourth proportional to 245,111.70, 338,201.67 and 143,090.86 is: 197,434.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,111.70 : 338,201.67 = 143,090.86 : x
  2. Step 2: Convert to fraction form
    245,111.70/338,201.67 = 143,090.86/x
  3. Step 3: Cross multiply
    245,111.70x = 338,201.67 × 143,090.86
  4. Step 4: Simplify right side
    245,111.70x = 48,393,567,813.74
  5. Step 5: Solve for x
    x = 48,393,567,813.74/245,111.70
  6. Step 6: Final answer
    x = 197,434.75

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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.