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Finding the Fourth Proportional to 429,338.02, 644,302.29 and 148,855.27

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Solution

The fourth proportional to 429,338.02, 644,302.29 and 148,855.27 is: 223,385.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,338.02 : 644,302.29 = 148,855.27 : x
  2. Step 2: Convert to fraction form
    429,338.02/644,302.29 = 148,855.27/x
  3. Step 3: Cross multiply
    429,338.02x = 644,302.29 × 148,855.27
  4. Step 4: Simplify right side
    429,338.02x = 95,907,791,339.57
  5. Step 5: Solve for x
    x = 95,907,791,339.57/429,338.02
  6. Step 6: Final answer
    x = 223,385.27

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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.