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Finding the Fourth Proportional to 320,101.20, 480,151.80 and 294,440.40

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Solution

The fourth proportional to 320,101.20, 480,151.80 and 294,440.40 is: 441,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,101.20 : 480,151.80 = 294,440.40 : x
  2. Step 2: Convert to fraction form
    320,101.20/480,151.80 = 294,440.40/x
  3. Step 3: Cross multiply
    320,101.20x = 480,151.80 × 294,440.40
  4. Step 4: Simplify right side
    320,101.20x = 141,376,088,052.72
  5. Step 5: Solve for x
    x = 141,376,088,052.72/320,101.20
  6. Step 6: Final answer
    x = 441,660.60

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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.