Home / 330,023.10-455,353.81-186,783.14

Finding the Fourth Proportional to 330,023.10, 455,353.81 and 186,783.14

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Solution

The fourth proportional to 330,023.10, 455,353.81 and 186,783.14 is: 257,716.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,023.10 : 455,353.81 = 186,783.14 : x
  2. Step 2: Convert to fraction form
    330,023.10/455,353.81 = 186,783.14/x
  3. Step 3: Cross multiply
    330,023.10x = 455,353.81 × 186,783.14
  4. Step 4: Simplify right side
    330,023.10x = 85,052,414,442.76
  5. Step 5: Solve for x
    x = 85,052,414,442.76/330,023.10
  6. Step 6: Final answer
    x = 257,716.55

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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.