Home / 303,621.40-455,723.70-259,298.20

Finding the Fourth Proportional to 303,621.40, 455,723.70 and 259,298.20

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Solution

The fourth proportional to 303,621.40, 455,723.70 and 259,298.20 is: 389,196.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,621.40 : 455,723.70 = 259,298.20 : x
  2. Step 2: Convert to fraction form
    303,621.40/455,723.70 = 259,298.20/x
  3. Step 3: Cross multiply
    303,621.40x = 455,723.70 × 259,298.20
  4. Step 4: Simplify right side
    303,621.40x = 118,168,335,107.34
  5. Step 5: Solve for x
    x = 118,168,335,107.34/303,621.40
  6. Step 6: Final answer
    x = 389,196.33

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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.