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Finding the Fourth Proportional to 285,390.88, 393,835.44 and 164,532.40

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Solution

The fourth proportional to 285,390.88, 393,835.44 and 164,532.40 is: 227,052.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,390.88 : 393,835.44 = 164,532.40 : x
  2. Step 2: Convert to fraction form
    285,390.88/393,835.44 = 164,532.40/x
  3. Step 3: Cross multiply
    285,390.88x = 393,835.44 × 164,532.40
  4. Step 4: Simplify right side
    285,390.88x = 64,798,690,148.26
  5. Step 5: Solve for x
    x = 64,798,690,148.26/285,390.88
  6. Step 6: Final answer
    x = 227,052.42

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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.