Home / 328,320.15-492,480.23-91,662.45

Finding the Fourth Proportional to 328,320.15, 492,480.23 and 91,662.45

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Solution

The fourth proportional to 328,320.15, 492,480.23 and 91,662.45 is: 137,493.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,320.15 : 492,480.23 = 91,662.45 : x
  2. Step 2: Convert to fraction form
    328,320.15/492,480.23 = 91,662.45/x
  3. Step 3: Cross multiply
    328,320.15x = 492,480.23 × 91,662.45
  4. Step 4: Simplify right side
    328,320.15x = 45,141,944,000.05
  5. Step 5: Solve for x
    x = 45,141,944,000.05/328,320.15
  6. Step 6: Final answer
    x = 137,493.68

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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.