Home / 429,550.02-643,911.93-204,849.54

Finding the Fourth Proportional to 429,550.02, 643,911.93 and 204,849.54

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Solution

The fourth proportional to 429,550.02, 643,911.93 and 204,849.54 is: 307,077.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,550.02 : 643,911.93 = 204,849.54 : x
  2. Step 2: Convert to fraction form
    429,550.02/643,911.93 = 204,849.54/x
  3. Step 3: Cross multiply
    429,550.02x = 643,911.93 × 204,849.54
  4. Step 4: Simplify right side
    429,550.02x = 131,905,062,661.01
  5. Step 5: Solve for x
    x = 131,905,062,661.01/429,550.02
  6. Step 6: Final answer
    x = 307,077.31

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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.