Home / 279,819.94-386,140.25-152,492.80

Finding the Fourth Proportional to 279,819.94, 386,140.25 and 152,492.80

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Solution

The fourth proportional to 279,819.94, 386,140.25 and 152,492.80 is: 210,433.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,819.94 : 386,140.25 = 152,492.80 : x
  2. Step 2: Convert to fraction form
    279,819.94/386,140.25 = 152,492.80/x
  3. Step 3: Cross multiply
    279,819.94x = 386,140.25 × 152,492.80
  4. Step 4: Simplify right side
    279,819.94x = 58,883,605,222.03
  5. Step 5: Solve for x
    x = 58,883,605,222.03/279,819.94
  6. Step 6: Final answer
    x = 210,433.92

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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.