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Finding the Fourth Proportional to 265,518.48, 398,113.92 and 130,410.72

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Solution

The fourth proportional to 265,518.48, 398,113.92 and 130,410.72 is: 195,535.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,518.48 : 398,113.92 = 130,410.72 : x
  2. Step 2: Convert to fraction form
    265,518.48/398,113.92 = 130,410.72/x
  3. Step 3: Cross multiply
    265,518.48x = 398,113.92 × 130,410.72
  4. Step 4: Simplify right side
    265,518.48x = 51,918,322,949.22
  5. Step 5: Solve for x
    x = 51,918,322,949.22/265,518.48
  6. Step 6: Final answer
    x = 195,535.63

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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.