Home / 355,103.61-490,040.07-193,958.76

Finding the Fourth Proportional to 355,103.61, 490,040.07 and 193,958.76

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Solution

The fourth proportional to 355,103.61, 490,040.07 and 193,958.76 is: 267,661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,103.61 : 490,040.07 = 193,958.76 : x
  2. Step 2: Convert to fraction form
    355,103.61/490,040.07 = 193,958.76/x
  3. Step 3: Cross multiply
    355,103.61x = 490,040.07 × 193,958.76
  4. Step 4: Simplify right side
    355,103.61x = 95,047,564,327.51
  5. Step 5: Solve for x
    x = 95,047,564,327.51/355,103.61
  6. Step 6: Final answer
    x = 267,661.50

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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.