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Finding the Fourth Proportional to 330,809.72, 456,507.66 and 187,582.84

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Solution

The fourth proportional to 330,809.72, 456,507.66 and 187,582.84 is: 258,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,809.72 : 456,507.66 = 187,582.84 : x
  2. Step 2: Convert to fraction form
    330,809.72/456,507.66 = 187,582.84/x
  3. Step 3: Cross multiply
    330,809.72x = 456,507.66 × 187,582.84
  4. Step 4: Simplify right side
    330,809.72x = 85,633,003,344.55
  5. Step 5: Solve for x
    x = 85,633,003,344.55/330,809.72
  6. Step 6: Final answer
    x = 258,858.79

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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.