Home / 256,579.20-384,285.60-131,774.40

Finding the Fourth Proportional to 256,579.20, 384,285.60 and 131,774.40

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Solution

The fourth proportional to 256,579.20, 384,285.60 and 131,774.40 is: 197,362.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,579.20 : 384,285.60 = 131,774.40 : x
  2. Step 2: Convert to fraction form
    256,579.20/384,285.60 = 131,774.40/x
  3. Step 3: Cross multiply
    256,579.20x = 384,285.60 × 131,774.40
  4. Step 4: Simplify right side
    256,579.20x = 50,639,004,368.64
  5. Step 5: Solve for x
    x = 50,639,004,368.64/256,579.20
  6. Step 6: Final answer
    x = 197,362.08

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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.