Home / 245,124.12-338,271.44-137,694.20

Finding the Fourth Proportional to 245,124.12, 338,271.44 and 137,694.20

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Solution

The fourth proportional to 245,124.12, 338,271.44 and 137,694.20 is: 190,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,124.12 : 338,271.44 = 137,694.20 : x
  2. Step 2: Convert to fraction form
    245,124.12/338,271.44 = 137,694.20/x
  3. Step 3: Cross multiply
    245,124.12x = 338,271.44 × 137,694.20
  4. Step 4: Simplify right side
    245,124.12x = 46,578,015,313.65
  5. Step 5: Solve for x
    x = 46,578,015,313.65/245,124.12
  6. Step 6: Final answer
    x = 190,018.08

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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.