Home / 387,055.21-534,118.01-214,984.33

Finding the Fourth Proportional to 387,055.21, 534,118.01 and 214,984.33

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Solution

The fourth proportional to 387,055.21, 534,118.01 and 214,984.33 is: 296,668.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,055.21 : 534,118.01 = 214,984.33 : x
  2. Step 2: Convert to fraction form
    387,055.21/534,118.01 = 214,984.33/x
  3. Step 3: Cross multiply
    387,055.21x = 534,118.01 × 214,984.33
  4. Step 4: Simplify right side
    387,055.21x = 114,827,001,722.95
  5. Step 5: Solve for x
    x = 114,827,001,722.95/387,055.21
  6. Step 6: Final answer
    x = 296,668.28

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1.5x scale

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.