Home / 355,066.74-489,973.66-193,890.31

Finding the Fourth Proportional to 355,066.74, 489,973.66 and 193,890.31

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Solution

The fourth proportional to 355,066.74, 489,973.66 and 193,890.31 is: 267,558.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,066.74 : 489,973.66 = 193,890.31 : x
  2. Step 2: Convert to fraction form
    355,066.74/489,973.66 = 193,890.31/x
  3. Step 3: Cross multiply
    355,066.74x = 489,973.66 × 193,890.31
  4. Step 4: Simplify right side
    355,066.74x = 95,001,143,119.57
  5. Step 5: Solve for x
    x = 95,001,143,119.57/355,066.74
  6. Step 6: Final answer
    x = 267,558.55

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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.