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Finding the Fourth Proportional to 265,541.89, 398,496.78 and 105,601.43

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Solution

The fourth proportional to 265,541.89, 398,496.78 and 105,601.43 is: 158,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,541.89 : 398,496.78 = 105,601.43 : x
  2. Step 2: Convert to fraction form
    265,541.89/398,496.78 = 105,601.43/x
  3. Step 3: Cross multiply
    265,541.89x = 398,496.78 × 105,601.43
  4. Step 4: Simplify right side
    265,541.89x = 42,081,830,589.55
  5. Step 5: Solve for x
    x = 42,081,830,589.55/265,541.89
  6. Step 6: Final answer
    x = 158,475.30

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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.