Home / 320,280.08-480,553.56-140,494.64

Finding the Fourth Proportional to 320,280.08, 480,553.56 and 140,494.64

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Solution

The fourth proportional to 320,280.08, 480,553.56 and 140,494.64 is: 210,800.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,280.08 : 480,553.56 = 140,494.64 : x
  2. Step 2: Convert to fraction form
    320,280.08/480,553.56 = 140,494.64/x
  3. Step 3: Cross multiply
    320,280.08x = 480,553.56 × 140,494.64
  4. Step 4: Simplify right side
    320,280.08x = 67,515,199,412.92
  5. Step 5: Solve for x
    x = 67,515,199,412.92/320,280.08
  6. Step 6: Final answer
    x = 210,800.50

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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.