Home / 228,308.46-315,066.05-126,338.21

Finding the Fourth Proportional to 228,308.46, 315,066.05 and 126,338.21

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Solution

The fourth proportional to 228,308.46, 315,066.05 and 126,338.21 is: 174,346.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,308.46 : 315,066.05 = 126,338.21 : x
  2. Step 2: Convert to fraction form
    228,308.46/315,066.05 = 126,338.21/x
  3. Step 3: Cross multiply
    228,308.46x = 315,066.05 × 126,338.21
  4. Step 4: Simplify right side
    228,308.46x = 39,804,880,157.08
  5. Step 5: Solve for x
    x = 39,804,880,157.08/228,308.46
  6. Step 6: Final answer
    x = 174,346.94

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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.