Home / 371,520.34-512,789.94-210,470.33

Finding the Fourth Proportional to 371,520.34, 512,789.94 and 210,470.33

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Solution

The fourth proportional to 371,520.34, 512,789.94 and 210,470.33 is: 290,501.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,520.34 : 512,789.94 = 210,470.33 : x
  2. Step 2: Convert to fraction form
    371,520.34/512,789.94 = 210,470.33/x
  3. Step 3: Cross multiply
    371,520.34x = 512,789.94 × 210,470.33
  4. Step 4: Simplify right side
    371,520.34x = 107,927,069,174.46
  5. Step 5: Solve for x
    x = 107,927,069,174.46/371,520.34
  6. Step 6: Final answer
    x = 290,501.11

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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.