Home / 320,288.20-480,029.10-162,560.20

Finding the Fourth Proportional to 320,288.20, 480,029.10 and 162,560.20

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Solution

The fourth proportional to 320,288.20, 480,029.10 and 162,560.20 is: 243,635.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,288.20 : 480,029.10 = 162,560.20 : x
  2. Step 2: Convert to fraction form
    320,288.20/480,029.10 = 162,560.20/x
  3. Step 3: Cross multiply
    320,288.20x = 480,029.10 × 162,560.20
  4. Step 4: Simplify right side
    320,288.20x = 78,033,626,501.82
  5. Step 5: Solve for x
    x = 78,033,626,501.82/320,288.20
  6. Step 6: Final answer
    x = 243,635.66

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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.