Home / 330,145.96-455,629.62-186,931.24

Finding the Fourth Proportional to 330,145.96, 455,629.62 and 186,931.24

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Solution

The fourth proportional to 330,145.96, 455,629.62 and 186,931.24 is: 257,981.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,145.96 : 455,629.62 = 186,931.24 : x
  2. Step 2: Convert to fraction form
    330,145.96/455,629.62 = 186,931.24/x
  3. Step 3: Cross multiply
    330,145.96x = 455,629.62 × 186,931.24
  4. Step 4: Simplify right side
    330,145.96x = 85,171,409,847.33
  5. Step 5: Solve for x
    x = 85,171,409,847.33/330,145.96
  6. Step 6: Final answer
    x = 257,981.08

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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.