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Finding the Fourth Proportional to 330,471.32, 456,051.94 and 187,259.26

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Solution

The fourth proportional to 330,471.32, 456,051.94 and 187,259.26 is: 258,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,471.32 : 456,051.94 = 187,259.26 : x
  2. Step 2: Convert to fraction form
    330,471.32/456,051.94 = 187,259.26/x
  3. Step 3: Cross multiply
    330,471.32x = 456,051.94 × 187,259.26
  4. Step 4: Simplify right side
    330,471.32x = 85,399,948,805.96
  5. Step 5: Solve for x
    x = 85,399,948,805.96/330,471.32
  6. Step 6: Final answer
    x = 258,418.64

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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.