Home / 432,267.39-648,401.09-221,771.07

Finding the Fourth Proportional to 432,267.39, 648,401.09 and 221,771.07

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Solution

The fourth proportional to 432,267.39, 648,401.09 and 221,771.07 is: 332,656.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,267.39 : 648,401.09 = 221,771.07 : x
  2. Step 2: Convert to fraction form
    432,267.39/648,401.09 = 221,771.07/x
  3. Step 3: Cross multiply
    432,267.39x = 648,401.09 × 221,771.07
  4. Step 4: Simplify right side
    432,267.39x = 143,796,602,409.61
  5. Step 5: Solve for x
    x = 143,796,602,409.61/432,267.39
  6. Step 6: Final answer
    x = 332,656.61

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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.