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Finding the Fourth Proportional to 320,224.82, 480,389.43 and 98,608.82

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Solution

The fourth proportional to 320,224.82, 480,389.43 and 98,608.82 is: 147,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,224.82 : 480,389.43 = 98,608.82 : x
  2. Step 2: Convert to fraction form
    320,224.82/480,389.43 = 98,608.82/x
  3. Step 3: Cross multiply
    320,224.82x = 480,389.43 × 98,608.82
  4. Step 4: Simplify right side
    320,224.82x = 47,370,634,832.77
  5. Step 5: Solve for x
    x = 47,370,634,832.77/320,224.82
  6. Step 6: Final answer
    x = 147,929.30

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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.