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Finding the Fourth Proportional to 330,774.67, 456,558.27 and 216,050.88

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Solution

The fourth proportional to 330,774.67, 456,558.27 and 216,050.88 is: 298,208.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,774.67 : 456,558.27 = 216,050.88 : x
  2. Step 2: Convert to fraction form
    330,774.67/456,558.27 = 216,050.88/x
  3. Step 3: Cross multiply
    330,774.67x = 456,558.27 × 216,050.88
  4. Step 4: Simplify right side
    330,774.67x = 98,639,816,004.78
  5. Step 5: Solve for x
    x = 98,639,816,004.78/330,774.67
  6. Step 6: Final answer
    x = 298,208.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.