Home / 387,021.02-534,090.32-214,939.43

Finding the Fourth Proportional to 387,021.02, 534,090.32 and 214,939.43

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Solution

The fourth proportional to 387,021.02, 534,090.32 and 214,939.43 is: 296,617.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,021.02 : 534,090.32 = 214,939.43 : x
  2. Step 2: Convert to fraction form
    387,021.02/534,090.32 = 214,939.43/x
  3. Step 3: Cross multiply
    387,021.02x = 534,090.32 × 214,939.43
  4. Step 4: Simplify right side
    387,021.02x = 114,797,068,949.32
  5. Step 5: Solve for x
    x = 114,797,068,949.32/387,021.02
  6. Step 6: Final answer
    x = 296,617.14

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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.