Home / 289,529.43-399,540.93-160,462.41

Finding the Fourth Proportional to 289,529.43, 399,540.93 and 160,462.41

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Solution

The fourth proportional to 289,529.43, 399,540.93 and 160,462.41 is: 221,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,529.43 : 399,540.93 = 160,462.41 : x
  2. Step 2: Convert to fraction form
    289,529.43/399,540.93 = 160,462.41/x
  3. Step 3: Cross multiply
    289,529.43x = 399,540.93 × 160,462.41
  4. Step 4: Simplify right side
    289,529.43x = 64,111,300,521.44
  5. Step 5: Solve for x
    x = 64,111,300,521.44/289,529.43
  6. Step 6: Final answer
    x = 221,432.76

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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.