Home / 371,918.51-513,227.86-210,775.49

Finding the Fourth Proportional to 371,918.51, 513,227.86 and 210,775.49

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Solution

The fourth proportional to 371,918.51, 513,227.86 and 210,775.49 is: 290,859.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,918.51 : 513,227.86 = 210,775.49 : x
  2. Step 2: Convert to fraction form
    371,918.51/513,227.86 = 210,775.49/x
  3. Step 3: Cross multiply
    371,918.51x = 513,227.86 × 210,775.49
  4. Step 4: Simplify right side
    371,918.51x = 108,175,850,580.07
  5. Step 5: Solve for x
    x = 108,175,850,580.07/371,918.51
  6. Step 6: Final answer
    x = 290,859.02

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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.