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Finding the Fourth Proportional to 338,143.50, 466,638.03 and 187,240.50

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Solution

The fourth proportional to 338,143.50, 466,638.03 and 187,240.50 is: 258,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,143.50 : 466,638.03 = 187,240.50 : x
  2. Step 2: Convert to fraction form
    338,143.50/466,638.03 = 187,240.50/x
  3. Step 3: Cross multiply
    338,143.50x = 466,638.03 × 187,240.50
  4. Step 4: Simplify right side
    338,143.50x = 87,373,538,056.22
  5. Step 5: Solve for x
    x = 87,373,538,056.22/338,143.50
  6. Step 6: Final answer
    x = 258,391.89

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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.