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Finding the Fourth Proportional to 328,222.30, 492,036.45 and 228,430.30

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Solution

The fourth proportional to 328,222.30, 492,036.45 and 228,430.30 is: 342,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,222.30 : 492,036.45 = 228,430.30 : x
  2. Step 2: Convert to fraction form
    328,222.30/492,036.45 = 228,430.30/x
  3. Step 3: Cross multiply
    328,222.30x = 492,036.45 × 228,430.30
  4. Step 4: Simplify right side
    328,222.30x = 112,396,033,884.44
  5. Step 5: Solve for x
    x = 112,396,033,884.44/328,222.30
  6. Step 6: Final answer
    x = 342,438.75

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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.