Home / 305,789.10-458,464.95-137,171.40

Finding the Fourth Proportional to 305,789.10, 458,464.95 and 137,171.40

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Solution

The fourth proportional to 305,789.10, 458,464.95 and 137,171.40 is: 205,659.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,789.10 : 458,464.95 = 137,171.40 : x
  2. Step 2: Convert to fraction form
    305,789.10/458,464.95 = 137,171.40/x
  3. Step 3: Cross multiply
    305,789.10x = 458,464.95 × 137,171.40
  4. Step 4: Simplify right side
    305,789.10x = 62,888,279,042.43
  5. Step 5: Solve for x
    x = 62,888,279,042.43/305,789.10
  6. Step 6: Final answer
    x = 205,659.00

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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.