Home / 403,423.61-556,717.10-222,131.57

Finding the Fourth Proportional to 403,423.61, 556,717.10 and 222,131.57

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Solution

The fourth proportional to 403,423.61, 556,717.10 and 222,131.57 is: 306,537.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,423.61 : 556,717.10 = 222,131.57 : x
  2. Step 2: Convert to fraction form
    403,423.61/556,717.10 = 222,131.57/x
  3. Step 3: Cross multiply
    403,423.61x = 556,717.10 × 222,131.57
  4. Step 4: Simplify right side
    403,423.61x = 123,664,439,574.60
  5. Step 5: Solve for x
    x = 123,664,439,574.60/403,423.61
  6. Step 6: Final answer
    x = 306,537.44

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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.