Home / 326,128.20-489,225.78-112,895.82

Finding the Fourth Proportional to 326,128.20, 489,225.78 and 112,895.82

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Solution

The fourth proportional to 326,128.20, 489,225.78 and 112,895.82 is: 169,355.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,128.20 : 489,225.78 = 112,895.82 : x
  2. Step 2: Convert to fraction form
    326,128.20/489,225.78 = 112,895.82/x
  3. Step 3: Cross multiply
    326,128.20x = 489,225.78 × 112,895.82
  4. Step 4: Simplify right side
    326,128.20x = 55,231,545,598.24
  5. Step 5: Solve for x
    x = 55,231,545,598.24/326,128.20
  6. Step 6: Final answer
    x = 169,355.32

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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.