Home / 328,231.20-492,346.80-302,570.40

Finding the Fourth Proportional to 328,231.20, 492,346.80 and 302,570.40

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Solution

The fourth proportional to 328,231.20, 492,346.80 and 302,570.40 is: 453,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,231.20 : 492,346.80 = 302,570.40 : x
  2. Step 2: Convert to fraction form
    328,231.20/492,346.80 = 302,570.40/x
  3. Step 3: Cross multiply
    328,231.20x = 492,346.80 × 302,570.40
  4. Step 4: Simplify right side
    328,231.20x = 148,969,568,214.72
  5. Step 5: Solve for x
    x = 148,969,568,214.72/328,231.20
  6. Step 6: Final answer
    x = 453,855.60

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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.