Home / 228,538.29-315,338.09-126,558.81

Finding the Fourth Proportional to 228,538.29, 315,338.09 and 126,558.81

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Solution

The fourth proportional to 228,538.29, 315,338.09 and 126,558.81 is: 174,626.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,538.29 : 315,338.09 = 126,558.81 : x
  2. Step 2: Convert to fraction form
    228,538.29/315,338.09 = 126,558.81/x
  3. Step 3: Cross multiply
    228,538.29x = 315,338.09 × 126,558.81
  4. Step 4: Simplify right side
    228,538.29x = 39,908,812,785.28
  5. Step 5: Solve for x
    x = 39,908,812,785.28/228,538.29
  6. Step 6: Final answer
    x = 174,626.37

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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.