Home / 309,784.43-464,669.81-127,376.79

Finding the Fourth Proportional to 309,784.43, 464,669.81 and 127,376.79

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Solution

The fourth proportional to 309,784.43, 464,669.81 and 127,376.79 is: 191,062.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,784.43 : 464,669.81 = 127,376.79 : x
  2. Step 2: Convert to fraction form
    309,784.43/464,669.81 = 127,376.79/x
  3. Step 3: Cross multiply
    309,784.43x = 464,669.81 × 127,376.79
  4. Step 4: Simplify right side
    309,784.43x = 59,188,148,170.83
  5. Step 5: Solve for x
    x = 59,188,148,170.83/309,784.43
  6. Step 6: Final answer
    x = 191,062.38

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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.