Home / 245,442.22-338,703.53-138,009.49

Finding the Fourth Proportional to 245,442.22, 338,703.53 and 138,009.49

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Solution

The fourth proportional to 245,442.22, 338,703.53 and 138,009.49 is: 190,449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,442.22 : 338,703.53 = 138,009.49 : x
  2. Step 2: Convert to fraction form
    245,442.22/338,703.53 = 138,009.49/x
  3. Step 3: Cross multiply
    245,442.22x = 338,703.53 × 138,009.49
  4. Step 4: Simplify right side
    245,442.22x = 46,744,301,781.52
  5. Step 5: Solve for x
    x = 46,744,301,781.52/245,442.22
  6. Step 6: Final answer
    x = 190,449.31

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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.