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Finding the Fourth Proportional to 320,275.12, 480,480.72 and 95,653.12

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Solution

The fourth proportional to 320,275.12, 480,480.72 and 95,653.12 is: 143,500.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,275.12 : 480,480.72 = 95,653.12 : x
  2. Step 2: Convert to fraction form
    320,275.12/480,480.72 = 95,653.12/x
  3. Step 3: Cross multiply
    320,275.12x = 480,480.72 × 95,653.12
  4. Step 4: Simplify right side
    320,275.12x = 45,959,479,967.85
  5. Step 5: Solve for x
    x = 45,959,479,967.85/320,275.12
  6. Step 6: Final answer
    x = 143,500.00

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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.