Home / 320,172.45-480,528.09-160,200.39

Finding the Fourth Proportional to 320,172.45, 480,528.09 and 160,200.39

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Solution

The fourth proportional to 320,172.45, 480,528.09 and 160,200.39 is: 240,435.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,172.45 : 480,528.09 = 160,200.39 : x
  2. Step 2: Convert to fraction form
    320,172.45/480,528.09 = 160,200.39/x
  3. Step 3: Cross multiply
    320,172.45x = 480,528.09 × 160,200.39
  4. Step 4: Simplify right side
    320,172.45x = 76,980,785,021.31
  5. Step 5: Solve for x
    x = 76,980,785,021.31/320,172.45
  6. Step 6: Final answer
    x = 240,435.38

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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.