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Finding the Fourth Proportional to 150,572.48, 207,888 and 102,808.48

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Solution

The fourth proportional to 150,572.48, 207,888 and 102,808.48 is: 141,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,572.48 : 207,888 = 102,808.48 : x
  2. Step 2: Convert to fraction form
    150,572.48/207,888 = 102,808.48/x
  3. Step 3: Cross multiply
    150,572.48x = 207,888 × 102,808.48
  4. Step 4: Simplify right side
    150,572.48x = 21,372,649,290.24
  5. Step 5: Solve for x
    x = 21,372,649,290.24/150,572.48
  6. Step 6: Final answer
    x = 141,942.60

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1.5x scale

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.