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Finding the Fourth Proportional to 262,145.51, 392,372.48 and 135,611.54

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Solution

The fourth proportional to 262,145.51, 392,372.48 and 135,611.54 is: 202,979.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,145.51 : 392,372.48 = 135,611.54 : x
  2. Step 2: Convert to fraction form
    262,145.51/392,372.48 = 135,611.54/x
  3. Step 3: Cross multiply
    262,145.51x = 392,372.48 × 135,611.54
  4. Step 4: Simplify right side
    262,145.51x = 53,210,236,837.12
  5. Step 5: Solve for x
    x = 53,210,236,837.12/262,145.51
  6. Step 6: Final answer
    x = 202,979.77

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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.