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Finding the Fourth Proportional to 270,039.20, 404,281.20 and 262,263.20

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Solution

The fourth proportional to 270,039.20, 404,281.20 and 262,263.20 is: 392,639.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,039.20 : 404,281.20 = 262,263.20 : x
  2. Step 2: Convert to fraction form
    270,039.20/404,281.20 = 262,263.20/x
  3. Step 3: Cross multiply
    270,039.20x = 404,281.20 × 262,263.20
  4. Step 4: Simplify right side
    270,039.20x = 106,028,081,211.84
  5. Step 5: Solve for x
    x = 106,028,081,211.84/270,039.20
  6. Step 6: Final answer
    x = 392,639.59

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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.