Home / 259,141.04-388,824.50-90,782.13

Finding the Fourth Proportional to 259,141.04, 388,824.50 and 90,782.13

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Solution

The fourth proportional to 259,141.04, 388,824.50 and 90,782.13 is: 136,212.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,141.04 : 388,824.50 = 90,782.13 : x
  2. Step 2: Convert to fraction form
    259,141.04/388,824.50 = 90,782.13/x
  3. Step 3: Cross multiply
    259,141.04x = 388,824.50 × 90,782.13
  4. Step 4: Simplify right side
    259,141.04x = 35,298,317,991.23
  5. Step 5: Solve for x
    x = 35,298,317,991.23/259,141.04
  6. Step 6: Final answer
    x = 136,212.77

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1.5x scale

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.