Home / 326,209.55-489,196.93-112,919.51

Finding the Fourth Proportional to 326,209.55, 489,196.93 and 112,919.51

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Solution

The fourth proportional to 326,209.55, 489,196.93 and 112,919.51 is: 169,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,209.55 : 489,196.93 = 112,919.51 : x
  2. Step 2: Convert to fraction form
    326,209.55/489,196.93 = 112,919.51/x
  3. Step 3: Cross multiply
    326,209.55x = 489,196.93 × 112,919.51
  4. Step 4: Simplify right side
    326,209.55x = 55,239,877,629.10
  5. Step 5: Solve for x
    x = 55,239,877,629.10/326,209.55
  6. Step 6: Final answer
    x = 169,338.63

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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.