Home / 239,885.25-331,070.81-139,283.25

Finding the Fourth Proportional to 239,885.25, 331,070.81 and 139,283.25

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Solution

The fourth proportional to 239,885.25, 331,070.81 and 139,283.25 is: 192,227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,885.25 : 331,070.81 = 139,283.25 : x
  2. Step 2: Convert to fraction form
    239,885.25/331,070.81 = 139,283.25/x
  3. Step 3: Cross multiply
    239,885.25x = 331,070.81 × 139,283.25
  4. Step 4: Simplify right side
    239,885.25x = 46,112,618,396.93
  5. Step 5: Solve for x
    x = 46,112,618,396.93/239,885.25
  6. Step 6: Final answer
    x = 192,227.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.