Home / 228,979.20-316,147.68-143,068.98

Finding the Fourth Proportional to 228,979.20, 316,147.68 and 143,068.98

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Solution

The fourth proportional to 228,979.20, 316,147.68 and 143,068.98 is: 197,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,979.20 : 316,147.68 = 143,068.98 : x
  2. Step 2: Convert to fraction form
    228,979.20/316,147.68 = 143,068.98/x
  3. Step 3: Cross multiply
    228,979.20x = 316,147.68 × 143,068.98
  4. Step 4: Simplify right side
    228,979.20x = 45,230,926,106.97
  5. Step 5: Solve for x
    x = 45,230,926,106.97/228,979.20
  6. Step 6: Final answer
    x = 197,532.90

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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.