Home / 387,266.13-534,369.29-217,467.45

Finding the Fourth Proportional to 387,266.13, 534,369.29 and 217,467.45

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Solution

The fourth proportional to 387,266.13, 534,369.29 and 217,467.45 is: 300,072.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,266.13 : 534,369.29 = 217,467.45 : x
  2. Step 2: Convert to fraction form
    387,266.13/534,369.29 = 217,467.45/x
  3. Step 3: Cross multiply
    387,266.13x = 534,369.29 × 217,467.45
  4. Step 4: Simplify right side
    387,266.13x = 116,207,925,767.27
  5. Step 5: Solve for x
    x = 116,207,925,767.27/387,266.13
  6. Step 6: Final answer
    x = 300,072.53

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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.