Home / 305,072.19-457,634.71-80,430.84

Finding the Fourth Proportional to 305,072.19, 457,634.71 and 80,430.84

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Solution

The fourth proportional to 305,072.19, 457,634.71 and 80,430.84 is: 120,653.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,072.19 : 457,634.71 = 80,430.84 : x
  2. Step 2: Convert to fraction form
    305,072.19/457,634.71 = 80,430.84/x
  3. Step 3: Cross multiply
    305,072.19x = 457,634.71 × 80,430.84
  4. Step 4: Simplify right side
    305,072.19x = 36,807,944,239.00
  5. Step 5: Solve for x
    x = 36,807,944,239.00/305,072.19
  6. Step 6: Final answer
    x = 120,653.23

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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.