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Finding the Fourth Proportional to 162,689.36, 243,943.50 and 50,338.31

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Solution

The fourth proportional to 162,689.36, 243,943.50 and 50,338.31 is: 75,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,689.36 : 243,943.50 = 50,338.31 : x
  2. Step 2: Convert to fraction form
    162,689.36/243,943.50 = 50,338.31/x
  3. Step 3: Cross multiply
    162,689.36x = 243,943.50 × 50,338.31
  4. Step 4: Simplify right side
    162,689.36x = 12,279,703,525.49
  5. Step 5: Solve for x
    x = 12,279,703,525.49/162,689.36
  6. Step 6: Final answer
    x = 75,479.45

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1.5x scale

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.