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Finding the Fourth Proportional to 237,292.78, 355,970.49 and 87,638.26

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Solution

The fourth proportional to 237,292.78, 355,970.49 and 87,638.26 is: 131,468.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,292.78 : 355,970.49 = 87,638.26 : x
  2. Step 2: Convert to fraction form
    237,292.78/355,970.49 = 87,638.26/x
  3. Step 3: Cross multiply
    237,292.78x = 355,970.49 × 87,638.26
  4. Step 4: Simplify right side
    237,292.78x = 31,196,634,354.95
  5. Step 5: Solve for x
    x = 31,196,634,354.95/237,292.78
  6. Step 6: Final answer
    x = 131,468.96

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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.