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Finding the Fourth Proportional to 260,453.94, 390,709.56 and 82,898.70

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Solution

The fourth proportional to 260,453.94, 390,709.56 and 82,898.70 is: 124,357.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,453.94 : 390,709.56 = 82,898.70 : x
  2. Step 2: Convert to fraction form
    260,453.94/390,709.56 = 82,898.70/x
  3. Step 3: Cross multiply
    260,453.94x = 390,709.56 × 82,898.70
  4. Step 4: Simplify right side
    260,453.94x = 32,389,314,601.57
  5. Step 5: Solve for x
    x = 32,389,314,601.57/260,453.94
  6. Step 6: Final answer
    x = 124,357.17

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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.