Home / 245,100.12-338,198.52-153,208.65

Finding the Fourth Proportional to 245,100.12, 338,198.52 and 153,208.65

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Solution

The fourth proportional to 245,100.12, 338,198.52 and 153,208.65 is: 211,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,100.12 : 338,198.52 = 153,208.65 : x
  2. Step 2: Convert to fraction form
    245,100.12/338,198.52 = 153,208.65/x
  3. Step 3: Cross multiply
    245,100.12x = 338,198.52 × 153,208.65
  4. Step 4: Simplify right side
    245,100.12x = 51,814,938,681.20
  5. Step 5: Solve for x
    x = 51,814,938,681.20/245,100.12
  6. Step 6: Final answer
    x = 211,403.16

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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.