Home / 432,423.90-648,418.10-144,133.44

Finding the Fourth Proportional to 432,423.90, 648,418.10 and 144,133.44

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Solution

The fourth proportional to 432,423.90, 648,418.10 and 144,133.44 is: 216,127.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,423.90 : 648,418.10 = 144,133.44 : x
  2. Step 2: Convert to fraction form
    432,423.90/648,418.10 = 144,133.44/x
  3. Step 3: Cross multiply
    432,423.90x = 648,418.10 × 144,133.44
  4. Step 4: Simplify right side
    432,423.90x = 93,458,731,311.26
  5. Step 5: Solve for x
    x = 93,458,731,311.26/432,423.90
  6. Step 6: Final answer
    x = 216,127.58

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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.