Home / 387,949.04-535,350.12-218,173.04

Finding the Fourth Proportional to 387,949.04, 535,350.12 and 218,173.04

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Solution

The fourth proportional to 387,949.04, 535,350.12 and 218,173.04 is: 301,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,949.04 : 535,350.12 = 218,173.04 : x
  2. Step 2: Convert to fraction form
    387,949.04/535,350.12 = 218,173.04/x
  3. Step 3: Cross multiply
    387,949.04x = 535,350.12 × 218,173.04
  4. Step 4: Simplify right side
    387,949.04x = 116,798,963,144.77
  5. Step 5: Solve for x
    x = 116,798,963,144.77/387,949.04
  6. Step 6: Final answer
    x = 301,067.80

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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.