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Finding the Fourth Proportional to 399,300.28, 598,949.34 and 162,587.32

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Solution

The fourth proportional to 399,300.28, 598,949.34 and 162,587.32 is: 243,880.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,300.28 : 598,949.34 = 162,587.32 : x
  2. Step 2: Convert to fraction form
    399,300.28/598,949.34 = 162,587.32/x
  3. Step 3: Cross multiply
    399,300.28x = 598,949.34 × 162,587.32
  4. Step 4: Simplify right side
    399,300.28x = 97,381,568,006.37
  5. Step 5: Solve for x
    x = 97,381,568,006.37/399,300.28
  6. Step 6: Final answer
    x = 243,880.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.