Home / 228,407.12-315,198.01-126,430.39

Finding the Fourth Proportional to 228,407.12, 315,198.01 and 126,430.39

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Solution

The fourth proportional to 228,407.12, 315,198.01 and 126,430.39 is: 174,471.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,407.12 : 315,198.01 = 126,430.39 : x
  2. Step 2: Convert to fraction form
    228,407.12/315,198.01 = 126,430.39/x
  3. Step 3: Cross multiply
    228,407.12x = 315,198.01 × 126,430.39
  4. Step 4: Simplify right side
    228,407.12x = 39,850,606,699.37
  5. Step 5: Solve for x
    x = 39,850,606,699.37/228,407.12
  6. Step 6: Final answer
    x = 174,471.83

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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.