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Finding the Fourth Proportional to 330,740.93, 496,109.54 and 120,378.87

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Solution

The fourth proportional to 330,740.93, 496,109.54 and 120,378.87 is: 180,567.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,740.93 : 496,109.54 = 120,378.87 : x
  2. Step 2: Convert to fraction form
    330,740.93/496,109.54 = 120,378.87/x
  3. Step 3: Cross multiply
    330,740.93x = 496,109.54 × 120,378.87
  4. Step 4: Simplify right side
    330,740.93x = 59,721,106,122.37
  5. Step 5: Solve for x
    x = 59,721,106,122.37/330,740.93
  6. Step 6: Final answer
    x = 180,567.63

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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.