Home / 228,312.83-315,072.11-126,342.61

Finding the Fourth Proportional to 228,312.83, 315,072.11 and 126,342.61

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Solution

The fourth proportional to 228,312.83, 315,072.11 and 126,342.61 is: 174,353.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,312.83 : 315,072.11 = 126,342.61 : x
  2. Step 2: Convert to fraction form
    228,312.83/315,072.11 = 126,342.61/x
  3. Step 3: Cross multiply
    228,312.83x = 315,072.11 × 126,342.61
  4. Step 4: Simplify right side
    228,312.83x = 39,807,032,715.61
  5. Step 5: Solve for x
    x = 39,807,032,715.61/228,312.83
  6. Step 6: Final answer
    x = 174,353.03

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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.