Home / 285,300.47-394,124.75-227,864.38

Finding the Fourth Proportional to 285,300.47, 394,124.75 and 227,864.38

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Solution

The fourth proportional to 285,300.47, 394,124.75 and 227,864.38 is: 314,780.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,300.47 : 394,124.75 = 227,864.38 : x
  2. Step 2: Convert to fraction form
    285,300.47/394,124.75 = 227,864.38/x
  3. Step 3: Cross multiply
    285,300.47x = 394,124.75 × 227,864.38
  4. Step 4: Simplify right side
    285,300.47x = 89,806,991,801.41
  5. Step 5: Solve for x
    x = 89,806,991,801.41/285,300.47
  6. Step 6: Final answer
    x = 314,780.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.