Home / 212,206.02-318,309.21-54,434.49

Finding the Fourth Proportional to 212,206.02, 318,309.21 and 54,434.49

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Solution

The fourth proportional to 212,206.02, 318,309.21 and 54,434.49 is: 81,651.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,206.02 : 318,309.21 = 54,434.49 : x
  2. Step 2: Convert to fraction form
    212,206.02/318,309.21 = 54,434.49/x
  3. Step 3: Cross multiply
    212,206.02x = 318,309.21 × 54,434.49
  4. Step 4: Simplify right side
    212,206.02x = 17,326,999,508.65
  5. Step 5: Solve for x
    x = 17,326,999,508.65/212,206.02
  6. Step 6: Final answer
    x = 81,651.78

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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.