Home / 328,470.24-492,899.76-138,919.92

Finding the Fourth Proportional to 328,470.24, 492,899.76 and 138,919.92

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Solution

The fourth proportional to 328,470.24, 492,899.76 and 138,919.92 is: 208,462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,470.24 : 492,899.76 = 138,919.92 : x
  2. Step 2: Convert to fraction form
    328,470.24/492,899.76 = 138,919.92/x
  3. Step 3: Cross multiply
    328,470.24x = 492,899.76 × 138,919.92
  4. Step 4: Simplify right side
    328,470.24x = 68,473,595,227.22
  5. Step 5: Solve for x
    x = 68,473,595,227.22/328,470.24
  6. Step 6: Final answer
    x = 208,462.10

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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.