Home / 305,273.96-457,932.80-80,632.16

Finding the Fourth Proportional to 305,273.96, 457,932.80 and 80,632.16

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Solution

The fourth proportional to 305,273.96, 457,932.80 and 80,632.16 is: 120,954.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,273.96 : 457,932.80 = 80,632.16 : x
  2. Step 2: Convert to fraction form
    305,273.96/457,932.80 = 80,632.16/x
  3. Step 3: Cross multiply
    305,273.96x = 457,932.80 × 80,632.16
  4. Step 4: Simplify right side
    305,273.96x = 36,924,108,509.18
  5. Step 5: Solve for x
    x = 36,924,108,509.18/305,273.96
  6. Step 6: Final answer
    x = 120,954.01

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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.