Home / 387,011.51-534,057.75-214,940.57

Finding the Fourth Proportional to 387,011.51, 534,057.75 and 214,940.57

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Solution

The fourth proportional to 387,011.51, 534,057.75 and 214,940.57 is: 296,607.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,011.51 : 534,057.75 = 214,940.57 : x
  2. Step 2: Convert to fraction form
    387,011.51/534,057.75 = 214,940.57/x
  3. Step 3: Cross multiply
    387,011.51x = 534,057.75 × 214,940.57
  4. Step 4: Simplify right side
    387,011.51x = 114,790,674,527.63
  5. Step 5: Solve for x
    x = 114,790,674,527.63/387,011.51
  6. Step 6: Final answer
    x = 296,607.91

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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.