Home / 403,898.83-557,378.58-220,137.10

Finding the Fourth Proportional to 403,898.83, 557,378.58 and 220,137.10

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Solution

The fourth proportional to 403,898.83, 557,378.58 and 220,137.10 is: 303,788.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,898.83 : 557,378.58 = 220,137.10 : x
  2. Step 2: Convert to fraction form
    403,898.83/557,378.58 = 220,137.10/x
  3. Step 3: Cross multiply
    403,898.83x = 557,378.58 × 220,137.10
  4. Step 4: Simplify right side
    403,898.83x = 122,699,704,203.32
  5. Step 5: Solve for x
    x = 122,699,704,203.32/403,898.83
  6. Step 6: Final answer
    x = 303,788.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.