Home / 262,310.40-393,427.20-129,154.56

Finding the Fourth Proportional to 262,310.40, 393,427.20 and 129,154.56

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Solution

The fourth proportional to 262,310.40, 393,427.20 and 129,154.56 is: 193,712.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,310.40 : 393,427.20 = 129,154.56 : x
  2. Step 2: Convert to fraction form
    262,310.40/393,427.20 = 129,154.56/x
  3. Step 3: Cross multiply
    262,310.40x = 393,427.20 × 129,154.56
  4. Step 4: Simplify right side
    262,310.40x = 50,812,916,908.03
  5. Step 5: Solve for x
    x = 50,812,916,908.03/262,310.40
  6. Step 6: Final answer
    x = 193,712.93

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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.