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Finding the Fourth Proportional to 320,300.20, 480,047.10 and 162,572.20

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Solution

The fourth proportional to 320,300.20, 480,047.10 and 162,572.20 is: 243,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,300.20 : 480,047.10 = 162,572.20 : x
  2. Step 2: Convert to fraction form
    320,300.20/480,047.10 = 162,572.20/x
  3. Step 3: Cross multiply
    320,300.20x = 480,047.10 × 162,572.20
  4. Step 4: Simplify right side
    320,300.20x = 78,042,313,150.62
  5. Step 5: Solve for x
    x = 78,042,313,150.62/320,300.20
  6. Step 6: Final answer
    x = 243,653.65

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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.