Home / 255,026.74-351,929.60-138,736.56

Finding the Fourth Proportional to 255,026.74, 351,929.60 and 138,736.56

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Solution

The fourth proportional to 255,026.74, 351,929.60 and 138,736.56 is: 191,452.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,026.74 : 351,929.60 = 138,736.56 : x
  2. Step 2: Convert to fraction form
    255,026.74/351,929.60 = 138,736.56/x
  3. Step 3: Cross multiply
    255,026.74x = 351,929.60 × 138,736.56
  4. Step 4: Simplify right side
    255,026.74x = 48,825,502,066.18
  5. Step 5: Solve for x
    x = 48,825,502,066.18/255,026.74
  6. Step 6: Final answer
    x = 191,452.48

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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.