Home / 212,495.10-317,187.96-187,273.20

Finding the Fourth Proportional to 212,495.10, 317,187.96 and 187,273.20

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Solution

The fourth proportional to 212,495.10, 317,187.96 and 187,273.20 is: 279,539.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,495.10 : 317,187.96 = 187,273.20 : x
  2. Step 2: Convert to fraction form
    212,495.10/317,187.96 = 187,273.20/x
  3. Step 3: Cross multiply
    212,495.10x = 317,187.96 × 187,273.20
  4. Step 4: Simplify right side
    212,495.10x = 59,400,804,270.67
  5. Step 5: Solve for x
    x = 59,400,804,270.67/212,495.10
  6. Step 6: Final answer
    x = 279,539.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.