Home / 328,077.20-492,115.80-117,736.40

Finding the Fourth Proportional to 328,077.20, 492,115.80 and 117,736.40

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Solution

The fourth proportional to 328,077.20, 492,115.80 and 117,736.40 is: 176,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,077.20 : 492,115.80 = 117,736.40 : x
  2. Step 2: Convert to fraction form
    328,077.20/492,115.80 = 117,736.40/x
  3. Step 3: Cross multiply
    328,077.20x = 492,115.80 × 117,736.40
  4. Step 4: Simplify right side
    328,077.20x = 57,939,942,675.12
  5. Step 5: Solve for x
    x = 57,939,942,675.12/328,077.20
  6. Step 6: Final answer
    x = 176,604.60

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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.