Home / 320,664.93-480,038.46-193,921.60

Finding the Fourth Proportional to 320,664.93, 480,038.46 and 193,921.60

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Solution

The fourth proportional to 320,664.93, 480,038.46 and 193,921.60 is: 290,302.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,664.93 : 480,038.46 = 193,921.60 : x
  2. Step 2: Convert to fraction form
    320,664.93/480,038.46 = 193,921.60/x
  3. Step 3: Cross multiply
    320,664.93x = 480,038.46 × 193,921.60
  4. Step 4: Simplify right side
    320,664.93x = 93,089,826,824.78
  5. Step 5: Solve for x
    x = 93,089,826,824.78/320,664.93
  6. Step 6: Final answer
    x = 290,302.48

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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.