Home / 230,488.45-318,050.78-128,504.33

Finding the Fourth Proportional to 230,488.45, 318,050.78 and 128,504.33

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Solution

The fourth proportional to 230,488.45, 318,050.78 and 128,504.33 is: 177,323.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,488.45 : 318,050.78 = 128,504.33 : x
  2. Step 2: Convert to fraction form
    230,488.45/318,050.78 = 128,504.33/x
  3. Step 3: Cross multiply
    230,488.45x = 318,050.78 × 128,504.33
  4. Step 4: Simplify right side
    230,488.45x = 40,870,902,542.48
  5. Step 5: Solve for x
    x = 40,870,902,542.48/230,488.45
  6. Step 6: Final answer
    x = 177,323.00

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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.