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Finding the Fourth Proportional to 384,175.80, 576,263.70 and 258,204.60

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Solution

The fourth proportional to 384,175.80, 576,263.70 and 258,204.60 is: 387,306.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,175.80 : 576,263.70 = 258,204.60 : x
  2. Step 2: Convert to fraction form
    384,175.80/576,263.70 = 258,204.60/x
  3. Step 3: Cross multiply
    384,175.80x = 576,263.70 × 258,204.60
  4. Step 4: Simplify right side
    384,175.80x = 148,793,938,153.02
  5. Step 5: Solve for x
    x = 148,793,938,153.02/384,175.80
  6. Step 6: Final answer
    x = 387,306.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.