Home / 328,548.27-492,826.32-128,962.65

Finding the Fourth Proportional to 328,548.27, 492,826.32 and 128,962.65

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Solution

The fourth proportional to 328,548.27, 492,826.32 and 128,962.65 is: 193,445.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,548.27 : 492,826.32 = 128,962.65 : x
  2. Step 2: Convert to fraction form
    328,548.27/492,826.32 = 128,962.65/x
  3. Step 3: Cross multiply
    328,548.27x = 492,826.32 × 128,962.65
  4. Step 4: Simplify right side
    328,548.27x = 63,556,188,216.95
  5. Step 5: Solve for x
    x = 63,556,188,216.95/328,548.27
  6. Step 6: Final answer
    x = 193,445.51

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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.