Home / 279,977.06-386,401.14-159,136.50

Finding the Fourth Proportional to 279,977.06, 386,401.14 and 159,136.50

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Solution

The fourth proportional to 279,977.06, 386,401.14 and 159,136.50 is: 219,627.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,977.06 : 386,401.14 = 159,136.50 : x
  2. Step 2: Convert to fraction form
    279,977.06/386,401.14 = 159,136.50/x
  3. Step 3: Cross multiply
    279,977.06x = 386,401.14 × 159,136.50
  4. Step 4: Simplify right side
    279,977.06x = 61,490,525,015.61
  5. Step 5: Solve for x
    x = 61,490,525,015.61/279,977.06
  6. Step 6: Final answer
    x = 219,627.01

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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.