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Finding the Fourth Proportional to 330,494.70, 456,165.63 and 187,340.16

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Solution

The fourth proportional to 330,494.70, 456,165.63 and 187,340.16 is: 258,576.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,494.70 : 456,165.63 = 187,340.16 : x
  2. Step 2: Convert to fraction form
    330,494.70/456,165.63 = 187,340.16/x
  3. Step 3: Cross multiply
    330,494.70x = 456,165.63 × 187,340.16
  4. Step 4: Simplify right side
    330,494.70x = 85,458,142,110.70
  5. Step 5: Solve for x
    x = 85,458,142,110.70/330,494.70
  6. Step 6: Final answer
    x = 258,576.44

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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.