Home / 320,030.24-480,043.60-130,489.86

Finding the Fourth Proportional to 320,030.24, 480,043.60 and 130,489.86

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Solution

The fourth proportional to 320,030.24, 480,043.60 and 130,489.86 is: 195,734.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,030.24 : 480,043.60 = 130,489.86 : x
  2. Step 2: Convert to fraction form
    320,030.24/480,043.60 = 130,489.86/x
  3. Step 3: Cross multiply
    320,030.24x = 480,043.60 × 130,489.86
  4. Step 4: Simplify right side
    320,030.24x = 62,640,822,157.90
  5. Step 5: Solve for x
    x = 62,640,822,157.90/320,030.24
  6. Step 6: Final answer
    x = 195,734.07

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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.