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Finding the Fourth Proportional to 360,519.28, 540,305.88 and 265,303.78

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Solution

The fourth proportional to 360,519.28, 540,305.88 and 265,303.78 is: 397,607.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,519.28 : 540,305.88 = 265,303.78 : x
  2. Step 2: Convert to fraction form
    360,519.28/540,305.88 = 265,303.78/x
  3. Step 3: Cross multiply
    360,519.28x = 540,305.88 × 265,303.78
  4. Step 4: Simplify right side
    360,519.28x = 143,345,189,974.57
  5. Step 5: Solve for x
    x = 143,345,189,974.57/360,519.28
  6. Step 6: Final answer
    x = 397,607.56

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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.