Home / 328,036.10-492,054.15-91,415.30

Finding the Fourth Proportional to 328,036.10, 492,054.15 and 91,415.30

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Solution

The fourth proportional to 328,036.10, 492,054.15 and 91,415.30 is: 137,122.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,036.10 : 492,054.15 = 91,415.30 : x
  2. Step 2: Convert to fraction form
    328,036.10/492,054.15 = 91,415.30/x
  3. Step 3: Cross multiply
    328,036.10x = 492,054.15 × 91,415.30
  4. Step 4: Simplify right side
    328,036.10x = 44,981,277,738.50
  5. Step 5: Solve for x
    x = 44,981,277,738.50/328,036.10
  6. Step 6: Final answer
    x = 137,122.95

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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.