Home / 275,330.90-379,956.94-160,688.36

Finding the Fourth Proportional to 275,330.90, 379,956.94 and 160,688.36

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Solution

The fourth proportional to 275,330.90, 379,956.94 and 160,688.36 is: 221,750.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,330.90 : 379,956.94 = 160,688.36 : x
  2. Step 2: Convert to fraction form
    275,330.90/379,956.94 = 160,688.36/x
  3. Step 3: Cross multiply
    275,330.90x = 379,956.94 × 160,688.36
  4. Step 4: Simplify right side
    275,330.90x = 61,054,657,559.22
  5. Step 5: Solve for x
    x = 61,054,657,559.22/275,330.90
  6. Step 6: Final answer
    x = 221,750.11

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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.