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Finding the Fourth Proportional to 285,386.90, 393,832.94 and 164,527.62

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Solution

The fourth proportional to 285,386.90, 393,832.94 and 164,527.62 is: 227,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,386.90 : 393,832.94 = 164,527.62 : x
  2. Step 2: Convert to fraction form
    285,386.90/393,832.94 = 164,527.62/x
  3. Step 3: Cross multiply
    285,386.90x = 393,832.94 × 164,527.62
  4. Step 4: Simplify right side
    285,386.90x = 64,796,396,295.80
  5. Step 5: Solve for x
    x = 64,796,396,295.80/285,386.90
  6. Step 6: Final answer
    x = 227,047.55

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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.