Home / 303,620.15-455,431.77-126,127.35

Finding the Fourth Proportional to 303,620.15, 455,431.77 and 126,127.35

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Solution

The fourth proportional to 303,620.15, 455,431.77 and 126,127.35 is: 189,191.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,620.15 : 455,431.77 = 126,127.35 : x
  2. Step 2: Convert to fraction form
    303,620.15/455,431.77 = 126,127.35/x
  3. Step 3: Cross multiply
    303,620.15x = 455,431.77 × 126,127.35
  4. Step 4: Simplify right side
    303,620.15x = 57,442,402,255.91
  5. Step 5: Solve for x
    x = 57,442,402,255.91/303,620.15
  6. Step 6: Final answer
    x = 189,191.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.