Home / 355,054.12-489,749.70-269,984.68

Finding the Fourth Proportional to 355,054.12, 489,749.70 and 269,984.68

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Solution

The fourth proportional to 355,054.12, 489,749.70 and 269,984.68 is: 372,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,054.12 : 489,749.70 = 269,984.68 : x
  2. Step 2: Convert to fraction form
    355,054.12/489,749.70 = 269,984.68/x
  3. Step 3: Cross multiply
    355,054.12x = 489,749.70 × 269,984.68
  4. Step 4: Simplify right side
    355,054.12x = 132,224,916,034.60
  5. Step 5: Solve for x
    x = 132,224,916,034.60/355,054.12
  6. Step 6: Final answer
    x = 372,407.78

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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.