Home / 245,307.27-338,552.07-136,422.45

Finding the Fourth Proportional to 245,307.27, 338,552.07 and 136,422.45

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Solution

The fourth proportional to 245,307.27, 338,552.07 and 136,422.45 is: 188,278.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,307.27 : 338,552.07 = 136,422.45 : x
  2. Step 2: Convert to fraction form
    245,307.27/338,552.07 = 136,422.45/x
  3. Step 3: Cross multiply
    245,307.27x = 338,552.07 × 136,422.45
  4. Step 4: Simplify right side
    245,307.27x = 46,186,101,149.21
  5. Step 5: Solve for x
    x = 46,186,101,149.21/245,307.27
  6. Step 6: Final answer
    x = 188,278.57

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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.