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Finding the Fourth Proportional to 380,304.39, 524,936.79 and 219,266.94

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Solution

The fourth proportional to 380,304.39, 524,936.79 and 219,266.94 is: 302,655.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,304.39 : 524,936.79 = 219,266.94 : x
  2. Step 2: Convert to fraction form
    380,304.39/524,936.79 = 219,266.94/x
  3. Step 3: Cross multiply
    380,304.39x = 524,936.79 × 219,266.94
  4. Step 4: Simplify right side
    380,304.39x = 115,101,283,636.72
  5. Step 5: Solve for x
    x = 115,101,283,636.72/380,304.39
  6. Step 6: Final answer
    x = 302,655.68

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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.