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Finding the Fourth Proportional to 750,105.81, 1,124,958.81 and 210,332.34

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Solution

The fourth proportional to 750,105.81, 1,124,958.81 and 210,332.34 is: 315,442.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,105.81 : 1,124,958.81 = 210,332.34 : x
  2. Step 2: Convert to fraction form
    750,105.81/1,124,958.81 = 210,332.34/x
  3. Step 3: Cross multiply
    750,105.81x = 1,124,958.81 × 210,332.34
  4. Step 4: Simplify right side
    750,105.81x = 236,615,218,910.92
  5. Step 5: Solve for x
    x = 236,615,218,910.92/750,105.81
  6. Step 6: Final answer
    x = 315,442.46

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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.