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Finding the Fourth Proportional to 262,482.12, 393,785.90 and 84,989.32

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Solution

The fourth proportional to 262,482.12, 393,785.90 and 84,989.32 is: 127,504.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,482.12 : 393,785.90 = 84,989.32 : x
  2. Step 2: Convert to fraction form
    262,482.12/393,785.90 = 84,989.32/x
  3. Step 3: Cross multiply
    262,482.12x = 393,785.90 × 84,989.32
  4. Step 4: Simplify right side
    262,482.12x = 33,467,595,866.59
  5. Step 5: Solve for x
    x = 33,467,595,866.59/262,482.12
  6. Step 6: Final answer
    x = 127,504.29

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1.5x scale

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.