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Finding the Fourth Proportional to 228,978.38, 315,625.06 and 180,501.26

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Solution

The fourth proportional to 228,978.38, 315,625.06 and 180,501.26 is: 248,803.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,978.38 : 315,625.06 = 180,501.26 : x
  2. Step 2: Convert to fraction form
    228,978.38/315,625.06 = 180,501.26/x
  3. Step 3: Cross multiply
    228,978.38x = 315,625.06 × 180,501.26
  4. Step 4: Simplify right side
    228,978.38x = 56,970,718,988.20
  5. Step 5: Solve for x
    x = 56,970,718,988.20/228,978.38
  6. Step 6: Final answer
    x = 248,803.92

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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.