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Finding the Fourth Proportional to 371,580.71, 512,693.52 and 218,625.57

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Solution

The fourth proportional to 371,580.71, 512,693.52 and 218,625.57 is: 301,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,580.71 : 512,693.52 = 218,625.57 : x
  2. Step 2: Convert to fraction form
    371,580.71/512,693.52 = 218,625.57/x
  3. Step 3: Cross multiply
    371,580.71x = 512,693.52 × 218,625.57
  4. Step 4: Simplify right side
    371,580.71x = 112,087,913,045.31
  5. Step 5: Solve for x
    x = 112,087,913,045.31/371,580.71
  6. Step 6: Final answer
    x = 301,651.60

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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.