Home / 245,212.65-338,403.42-137,782.35

Finding the Fourth Proportional to 245,212.65, 338,403.42 and 137,782.35

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Solution

The fourth proportional to 245,212.65, 338,403.42 and 137,782.35 is: 190,145.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,212.65 : 338,403.42 = 137,782.35 : x
  2. Step 2: Convert to fraction form
    245,212.65/338,403.42 = 137,782.35/x
  3. Step 3: Cross multiply
    245,212.65x = 338,403.42 × 137,782.35
  4. Step 4: Simplify right side
    245,212.65x = 46,626,018,455.64
  5. Step 5: Solve for x
    x = 46,626,018,455.64/245,212.65
  6. Step 6: Final answer
    x = 190,145.24

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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.