Home / 312,419.15-468,313.20-123,012.45

Finding the Fourth Proportional to 312,419.15, 468,313.20 and 123,012.45

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Solution

The fourth proportional to 312,419.15, 468,313.20 and 123,012.45 is: 184,394.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,419.15 : 468,313.20 = 123,012.45 : x
  2. Step 2: Convert to fraction form
    312,419.15/468,313.20 = 123,012.45/x
  3. Step 3: Cross multiply
    312,419.15x = 468,313.20 × 123,012.45
  4. Step 4: Simplify right side
    312,419.15x = 57,608,354,099.34
  5. Step 5: Solve for x
    x = 57,608,354,099.34/312,419.15
  6. Step 6: Final answer
    x = 184,394.44

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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.