Home / 285,655.61-394,191.15-164,835.74

Finding the Fourth Proportional to 285,655.61, 394,191.15 and 164,835.74

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Solution

The fourth proportional to 285,655.61, 394,191.15 and 164,835.74 is: 227,465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,655.61 : 394,191.15 = 164,835.74 : x
  2. Step 2: Convert to fraction form
    285,655.61/394,191.15 = 164,835.74/x
  3. Step 3: Cross multiply
    285,655.61x = 394,191.15 × 164,835.74
  4. Step 4: Simplify right side
    285,655.61x = 64,976,789,911.70
  5. Step 5: Solve for x
    x = 64,976,789,911.70/285,655.61
  6. Step 6: Final answer
    x = 227,465.48

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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.