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Finding the Fourth Proportional to 262,443.71, 393,728.03 and 84,950.70

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Solution

The fourth proportional to 262,443.71, 393,728.03 and 84,950.70 is: 127,446.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,443.71 : 393,728.03 = 84,950.70 : x
  2. Step 2: Convert to fraction form
    262,443.71/393,728.03 = 84,950.70/x
  3. Step 3: Cross multiply
    262,443.71x = 393,728.03 × 84,950.70
  4. Step 4: Simplify right side
    262,443.71x = 33,447,471,333.37
  5. Step 5: Solve for x
    x = 33,447,471,333.37/262,443.71
  6. Step 6: Final answer
    x = 127,446.27

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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.