Home / 313,867.20-470,186.40-188,836.80

Finding the Fourth Proportional to 313,867.20, 470,186.40 and 188,836.80

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Solution

The fourth proportional to 313,867.20, 470,186.40 and 188,836.80 is: 282,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,867.20 : 470,186.40 = 188,836.80 : x
  2. Step 2: Convert to fraction form
    313,867.20/470,186.40 = 188,836.80/x
  3. Step 3: Cross multiply
    313,867.20x = 470,186.40 × 188,836.80
  4. Step 4: Simplify right side
    313,867.20x = 88,788,495,179.52
  5. Step 5: Solve for x
    x = 88,788,495,179.52/313,867.20
  6. Step 6: Final answer
    x = 282,885.55

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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.