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Finding the Fourth Proportional to 289,711.00, 399,802.06 and 160,658.56

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Solution

The fourth proportional to 289,711.00, 399,802.06 and 160,658.56 is: 221,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,711.00 : 399,802.06 = 160,658.56 : x
  2. Step 2: Convert to fraction form
    289,711.00/399,802.06 = 160,658.56/x
  3. Step 3: Cross multiply
    289,711.00x = 399,802.06 × 160,658.56
  4. Step 4: Simplify right side
    289,711.00x = 64,231,621,647.27
  5. Step 5: Solve for x
    x = 64,231,621,647.27/289,711.00
  6. Step 6: Final answer
    x = 221,709.30

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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.