Home / 403,039.10-556,273.50-231,072.60

Finding the Fourth Proportional to 403,039.10, 556,273.50 and 231,072.60

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Solution

The fourth proportional to 403,039.10, 556,273.50 and 231,072.60 is: 318,925.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,039.10 : 556,273.50 = 231,072.60 : x
  2. Step 2: Convert to fraction form
    403,039.10/556,273.50 = 231,072.60/x
  3. Step 3: Cross multiply
    403,039.10x = 556,273.50 × 231,072.60
  4. Step 4: Simplify right side
    403,039.10x = 128,539,563,956.10
  5. Step 5: Solve for x
    x = 128,539,563,956.10/403,039.10
  6. Step 6: Final answer
    x = 318,925.79

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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.