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Finding the Fourth Proportional to 228,369.98, 315,140.88 and 126,385.88

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Solution

The fourth proportional to 228,369.98, 315,140.88 and 126,385.88 is: 174,407.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,369.98 : 315,140.88 = 126,385.88 : x
  2. Step 2: Convert to fraction form
    228,369.98/315,140.88 = 126,385.88/x
  3. Step 3: Cross multiply
    228,369.98x = 315,140.88 × 126,385.88
  4. Step 4: Simplify right side
    228,369.98x = 39,829,357,442.77
  5. Step 5: Solve for x
    x = 39,829,357,442.77/228,369.98
  6. Step 6: Final answer
    x = 174,407.15

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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.