Home / 285,389.28-393,836.40-164,530.08

Finding the Fourth Proportional to 285,389.28, 393,836.40 and 164,530.08

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Solution

The fourth proportional to 285,389.28, 393,836.40 and 164,530.08 is: 227,051.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,389.28 : 393,836.40 = 164,530.08 : x
  2. Step 2: Convert to fraction form
    285,389.28/393,836.40 = 164,530.08/x
  3. Step 3: Cross multiply
    285,389.28x = 393,836.40 × 164,530.08
  4. Step 4: Simplify right side
    285,389.28x = 64,797,934,398.91
  5. Step 5: Solve for x
    x = 64,797,934,398.91/285,389.28
  6. Step 6: Final answer
    x = 227,051.05

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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.