Home / 300,816.81-451,228.86-101,136.42

Finding the Fourth Proportional to 300,816.81, 451,228.86 and 101,136.42

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Solution

The fourth proportional to 300,816.81, 451,228.86 and 101,136.42 is: 151,705.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,816.81 : 451,228.86 = 101,136.42 : x
  2. Step 2: Convert to fraction form
    300,816.81/451,228.86 = 101,136.42/x
  3. Step 3: Cross multiply
    300,816.81x = 451,228.86 × 101,136.42
  4. Step 4: Simplify right side
    300,816.81x = 45,635,671,501.08
  5. Step 5: Solve for x
    x = 45,635,671,501.08/300,816.81
  6. Step 6: Final answer
    x = 151,705.86

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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.