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Finding the Fourth Proportional to 330,706.48, 496,058.61 and 90,820.60

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Solution

The fourth proportional to 330,706.48, 496,058.61 and 90,820.60 is: 136,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,706.48 : 496,058.61 = 90,820.60 : x
  2. Step 2: Convert to fraction form
    330,706.48/496,058.61 = 90,820.60/x
  3. Step 3: Cross multiply
    330,706.48x = 496,058.61 × 90,820.60
  4. Step 4: Simplify right side
    330,706.48x = 45,052,340,595.37
  5. Step 5: Solve for x
    x = 45,052,340,595.37/330,706.48
  6. Step 6: Final answer
    x = 136,230.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.