Home / 379,802.08-524,258.76-218,721.25

Finding the Fourth Proportional to 379,802.08, 524,258.76 and 218,721.25

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Solution

The fourth proportional to 379,802.08, 524,258.76 and 218,721.25 is: 301,911.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,802.08 : 524,258.76 = 218,721.25 : x
  2. Step 2: Convert to fraction form
    379,802.08/524,258.76 = 218,721.25/x
  3. Step 3: Cross multiply
    379,802.08x = 524,258.76 × 218,721.25
  4. Step 4: Simplify right side
    379,802.08x = 114,666,531,310.65
  5. Step 5: Solve for x
    x = 114,666,531,310.65/379,802.08
  6. Step 6: Final answer
    x = 301,911.28

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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.