Home / 285,136.16-393,575.58-164,358.21

Finding the Fourth Proportional to 285,136.16, 393,575.58 and 164,358.21

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Solution

The fourth proportional to 285,136.16, 393,575.58 and 164,358.21 is: 226,864.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,136.16 : 393,575.58 = 164,358.21 : x
  2. Step 2: Convert to fraction form
    285,136.16/393,575.58 = 164,358.21/x
  3. Step 3: Cross multiply
    285,136.16x = 393,575.58 × 164,358.21
  4. Step 4: Simplify right side
    285,136.16x = 64,687,377,006.72
  5. Step 5: Solve for x
    x = 64,687,377,006.72/285,136.16
  6. Step 6: Final answer
    x = 226,864.87

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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.