Home / 305,931.20-458,896.80-193,738.10

Finding the Fourth Proportional to 305,931.20, 458,896.80 and 193,738.10

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Solution

The fourth proportional to 305,931.20, 458,896.80 and 193,738.10 is: 290,607.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,931.20 : 458,896.80 = 193,738.10 : x
  2. Step 2: Convert to fraction form
    305,931.20/458,896.80 = 193,738.10/x
  3. Step 3: Cross multiply
    305,931.20x = 458,896.80 × 193,738.10
  4. Step 4: Simplify right side
    305,931.20x = 88,905,794,128.08
  5. Step 5: Solve for x
    x = 88,905,794,128.08/305,931.20
  6. Step 6: Final answer
    x = 290,607.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.