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Finding the Fourth Proportional to 429,348.04, 644,131.48 and 192,780.24

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Solution

The fourth proportional to 429,348.04, 644,131.48 and 192,780.24 is: 289,219.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,348.04 : 644,131.48 = 192,780.24 : x
  2. Step 2: Convert to fraction form
    429,348.04/644,131.48 = 192,780.24/x
  3. Step 3: Cross multiply
    429,348.04x = 644,131.48 × 192,780.24
  4. Step 4: Simplify right side
    429,348.04x = 124,175,821,305.96
  5. Step 5: Solve for x
    x = 124,175,821,305.96/429,348.04
  6. Step 6: Final answer
    x = 289,219.49

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1.5x scale

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.