Home / 219,266.15-328,907.12-112,621.37

Finding the Fourth Proportional to 219,266.15, 328,907.12 and 112,621.37

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Solution

The fourth proportional to 219,266.15, 328,907.12 and 112,621.37 is: 168,936.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,266.15 : 328,907.12 = 112,621.37 : x
  2. Step 2: Convert to fraction form
    219,266.15/328,907.12 = 112,621.37/x
  3. Step 3: Cross multiply
    219,266.15x = 328,907.12 × 112,621.37
  4. Step 4: Simplify right side
    219,266.15x = 37,041,968,249.51
  5. Step 5: Solve for x
    x = 37,041,968,249.51/219,266.15
  6. Step 6: Final answer
    x = 168,936.10

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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.