Home / 429,929.16-644,900.11-163,704.43

Finding the Fourth Proportional to 429,929.16, 644,900.11 and 163,704.43

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Solution

The fourth proportional to 429,929.16, 644,900.11 and 163,704.43 is: 245,559.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,929.16 : 644,900.11 = 163,704.43 : x
  2. Step 2: Convert to fraction form
    429,929.16/644,900.11 = 163,704.43/x
  3. Step 3: Cross multiply
    429,929.16x = 644,900.11 × 163,704.43
  4. Step 4: Simplify right side
    429,929.16x = 105,573,004,914.49
  5. Step 5: Solve for x
    x = 105,573,004,914.49/429,929.16
  6. Step 6: Final answer
    x = 245,559.07

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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.