Home / 245,111.48-338,201.36-143,090.64

Finding the Fourth Proportional to 245,111.48, 338,201.36 and 143,090.64

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Solution

The fourth proportional to 245,111.48, 338,201.36 and 143,090.64 is: 197,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,111.48 : 338,201.36 = 143,090.64 : x
  2. Step 2: Convert to fraction form
    245,111.48/338,201.36 = 143,090.64/x
  3. Step 3: Cross multiply
    245,111.48x = 338,201.36 × 143,090.64
  4. Step 4: Simplify right side
    245,111.48x = 48,393,449,051.27
  5. Step 5: Solve for x
    x = 48,393,449,051.27/245,111.48
  6. Step 6: Final answer
    x = 197,434.45

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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.