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Finding the Fourth Proportional to 330,775.67, 456,559.65 and 216,051.88

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Solution

The fourth proportional to 330,775.67, 456,559.65 and 216,051.88 is: 298,209.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,775.67 : 456,559.65 = 216,051.88 : x
  2. Step 2: Convert to fraction form
    330,775.67/456,559.65 = 216,051.88/x
  3. Step 3: Cross multiply
    330,775.67x = 456,559.65 × 216,051.88
  4. Step 4: Simplify right side
    330,775.67x = 98,640,570,714.64
  5. Step 5: Solve for x
    x = 98,640,570,714.64/330,775.67
  6. Step 6: Final answer
    x = 298,209.87

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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.