Home / 274,875.21-379,292.54-153,986.76

Finding the Fourth Proportional to 274,875.21, 379,292.54 and 153,986.76

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Solution

The fourth proportional to 274,875.21, 379,292.54 and 153,986.76 is: 212,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,875.21 : 379,292.54 = 153,986.76 : x
  2. Step 2: Convert to fraction form
    274,875.21/379,292.54 = 153,986.76/x
  3. Step 3: Cross multiply
    274,875.21x = 379,292.54 × 153,986.76
  4. Step 4: Simplify right side
    274,875.21x = 58,406,028,556.84
  5. Step 5: Solve for x
    x = 58,406,028,556.84/274,875.21
  6. Step 6: Final answer
    x = 212,481.98

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1.5x scale

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.