Home / 303,815.50-455,427.05-121,391.93

Finding the Fourth Proportional to 303,815.50, 455,427.05 and 121,391.93

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Solution

The fourth proportional to 303,815.50, 455,427.05 and 121,391.93 is: 181,969.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,815.50 : 455,427.05 = 121,391.93 : x
  2. Step 2: Convert to fraction form
    303,815.50/455,427.05 = 121,391.93/x
  3. Step 3: Cross multiply
    303,815.50x = 455,427.05 × 121,391.93
  4. Step 4: Simplify right side
    303,815.50x = 55,285,167,966.75
  5. Step 5: Solve for x
    x = 55,285,167,966.75/303,815.50
  6. Step 6: Final answer
    x = 181,969.55

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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.