Home / 285,565.49-394,167.02-164,785.78

Finding the Fourth Proportional to 285,565.49, 394,167.02 and 164,785.78

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Solution

The fourth proportional to 285,565.49, 394,167.02 and 164,785.78 is: 227,454.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,565.49 : 394,167.02 = 164,785.78 : x
  2. Step 2: Convert to fraction form
    285,565.49/394,167.02 = 164,785.78/x
  3. Step 3: Cross multiply
    285,565.49x = 394,167.02 × 164,785.78
  4. Step 4: Simplify right side
    285,565.49x = 64,953,119,840.98
  5. Step 5: Solve for x
    x = 64,953,119,840.98/285,565.49
  6. Step 6: Final answer
    x = 227,454.37

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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.