Home / 228,313.08-315,072.43-126,342.83

Finding the Fourth Proportional to 228,313.08, 315,072.43 and 126,342.83

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Solution

The fourth proportional to 228,313.08, 315,072.43 and 126,342.83 is: 174,353.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,313.08 : 315,072.43 = 126,342.83 : x
  2. Step 2: Convert to fraction form
    228,313.08/315,072.43 = 126,342.83/x
  3. Step 3: Cross multiply
    228,313.08x = 315,072.43 × 126,342.83
  4. Step 4: Simplify right side
    228,313.08x = 39,807,142,933.00
  5. Step 5: Solve for x
    x = 39,807,142,933.00/228,313.08
  6. Step 6: Final answer
    x = 174,353.32

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1.5x scale

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.