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Finding the Fourth Proportional to 289,004.59, 398,562.87 and 248,155.98

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Solution

The fourth proportional to 289,004.59, 398,562.87 and 248,155.98 is: 342,229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,004.59 : 398,562.87 = 248,155.98 : x
  2. Step 2: Convert to fraction form
    289,004.59/398,562.87 = 248,155.98/x
  3. Step 3: Cross multiply
    289,004.59x = 398,562.87 × 248,155.98
  4. Step 4: Simplify right side
    289,004.59x = 98,905,759,596.46
  5. Step 5: Solve for x
    x = 98,905,759,596.46/289,004.59
  6. Step 6: Final answer
    x = 342,229.03

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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.