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Finding the Fourth Proportional to 265,903.50, 398,858.72 and 88,410.51

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Solution

The fourth proportional to 265,903.50, 398,858.72 and 88,410.51 is: 132,616.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,903.50 : 398,858.72 = 88,410.51 : x
  2. Step 2: Convert to fraction form
    265,903.50/398,858.72 = 88,410.51/x
  3. Step 3: Cross multiply
    265,903.50x = 398,858.72 × 88,410.51
  4. Step 4: Simplify right side
    265,903.50x = 35,263,303,074.17
  5. Step 5: Solve for x
    x = 35,263,303,074.17/265,903.50
  6. Step 6: Final answer
    x = 132,616.92

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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.