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Finding the Fourth Proportional to 330,133.76, 455,589.60 and 179,230.76

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Solution

The fourth proportional to 330,133.76, 455,589.60 and 179,230.76 is: 247,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,133.76 : 455,589.60 = 179,230.76 : x
  2. Step 2: Convert to fraction form
    330,133.76/455,589.60 = 179,230.76/x
  3. Step 3: Cross multiply
    330,133.76x = 455,589.60 × 179,230.76
  4. Step 4: Simplify right side
    330,133.76x = 81,655,670,256.10
  5. Step 5: Solve for x
    x = 81,655,670,256.10/330,133.76
  6. Step 6: Final answer
    x = 247,341.17

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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.