Home / 515,746.56-773,365.58-212,085.30

Finding the Fourth Proportional to 515,746.56, 773,365.58 and 212,085.30

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Solution

The fourth proportional to 515,746.56, 773,365.58 and 212,085.30 is: 318,023.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,746.56 : 773,365.58 = 212,085.30 : x
  2. Step 2: Convert to fraction form
    515,746.56/773,365.58 = 212,085.30/x
  3. Step 3: Cross multiply
    515,746.56x = 773,365.58 × 212,085.30
  4. Step 4: Simplify right side
    515,746.56x = 164,019,471,043.97
  5. Step 5: Solve for x
    x = 164,019,471,043.97/515,746.56
  6. Step 6: Final answer
    x = 318,023.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.