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Finding the Fourth Proportional to 330,015.70, 455,422.17 and 179,113.06

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Solution

The fourth proportional to 330,015.70, 455,422.17 and 179,113.06 is: 247,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,015.70 : 455,422.17 = 179,113.06 : x
  2. Step 2: Convert to fraction form
    330,015.70/455,422.17 = 179,113.06/x
  3. Step 3: Cross multiply
    330,015.70x = 455,422.17 × 179,113.06
  4. Step 4: Simplify right side
    330,015.70x = 81,572,058,460.54
  5. Step 5: Solve for x
    x = 81,572,058,460.54/330,015.70
  6. Step 6: Final answer
    x = 247,176.30

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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.