Home / 393,056.36-589,439.50-140,269.24

Finding the Fourth Proportional to 393,056.36, 589,439.50 and 140,269.24

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Solution

The fourth proportional to 393,056.36, 589,439.50 and 140,269.24 is: 210,352.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,056.36 : 589,439.50 = 140,269.24 : x
  2. Step 2: Convert to fraction form
    393,056.36/589,439.50 = 140,269.24/x
  3. Step 3: Cross multiply
    393,056.36x = 589,439.50 × 140,269.24
  4. Step 4: Simplify right side
    393,056.36x = 82,680,230,690.98
  5. Step 5: Solve for x
    x = 82,680,230,690.98/393,056.36
  6. Step 6: Final answer
    x = 210,352.10

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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.