Home / 391,092.03-539,598.41-221,322.51

Finding the Fourth Proportional to 391,092.03, 539,598.41 and 221,322.51

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Solution

The fourth proportional to 391,092.03, 539,598.41 and 221,322.51 is: 305,363.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,092.03 : 539,598.41 = 221,322.51 : x
  2. Step 2: Convert to fraction form
    391,092.03/539,598.41 = 221,322.51/x
  3. Step 3: Cross multiply
    391,092.03x = 539,598.41 × 221,322.51
  4. Step 4: Simplify right side
    391,092.03x = 119,425,273,386.60
  5. Step 5: Solve for x
    x = 119,425,273,386.60/391,092.03
  6. Step 6: Final answer
    x = 305,363.61

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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.