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Finding the Fourth Proportional to 330,808.72, 456,506.28 and 187,581.84

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Solution

The fourth proportional to 330,808.72, 456,506.28 and 187,581.84 is: 258,857.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,808.72 : 456,506.28 = 187,581.84 : x
  2. Step 2: Convert to fraction form
    330,808.72/456,506.28 = 187,581.84/x
  3. Step 3: Cross multiply
    330,808.72x = 456,506.28 × 187,581.84
  4. Step 4: Simplify right side
    330,808.72x = 85,632,287,973.96
  5. Step 5: Solve for x
    x = 85,632,287,973.96/330,808.72
  6. Step 6: Final answer
    x = 258,857.41

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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.