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Finding the Fourth Proportional to 300,487.55, 450,729.95 and 122,994.59

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Solution

The fourth proportional to 300,487.55, 450,729.95 and 122,994.59 is: 184,491.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,487.55 : 450,729.95 = 122,994.59 : x
  2. Step 2: Convert to fraction form
    300,487.55/450,729.95 = 122,994.59/x
  3. Step 3: Cross multiply
    300,487.55x = 450,729.95 × 122,994.59
  4. Step 4: Simplify right side
    300,487.55x = 55,437,342,532.35
  5. Step 5: Solve for x
    x = 55,437,342,532.35/300,487.55
  6. Step 6: Final answer
    x = 184,491.32

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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.