Home / 284,301.06-390,274.01-281,644.26

Finding the Fourth Proportional to 284,301.06, 390,274.01 and 281,644.26

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Solution

The fourth proportional to 284,301.06, 390,274.01 and 281,644.26 is: 386,626.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,301.06 : 390,274.01 = 281,644.26 : x
  2. Step 2: Convert to fraction form
    284,301.06/390,274.01 = 281,644.26/x
  3. Step 3: Cross multiply
    284,301.06x = 390,274.01 × 281,644.26
  4. Step 4: Simplify right side
    284,301.06x = 109,918,433,335.46
  5. Step 5: Solve for x
    x = 109,918,433,335.46/284,301.06
  6. Step 6: Final answer
    x = 386,626.89

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.