Home / 236,240.78-326,157.01-145,720.51

Finding the Fourth Proportional to 236,240.78, 326,157.01 and 145,720.51

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Solution

The fourth proportional to 236,240.78, 326,157.01 and 145,720.51 is: 201,183.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,240.78 : 326,157.01 = 145,720.51 : x
  2. Step 2: Convert to fraction form
    236,240.78/326,157.01 = 145,720.51/x
  3. Step 3: Cross multiply
    236,240.78x = 326,157.01 × 145,720.51
  4. Step 4: Simplify right side
    236,240.78x = 47,527,765,837.28
  5. Step 5: Solve for x
    x = 47,527,765,837.28/236,240.78
  6. Step 6: Final answer
    x = 201,183.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.