Home / 211,500.76-316,828.14-127,214.38

Finding the Fourth Proportional to 211,500.76, 316,828.14 and 127,214.38

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Solution

The fourth proportional to 211,500.76, 316,828.14 and 127,214.38 is: 190,567.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,500.76 : 316,828.14 = 127,214.38 : x
  2. Step 2: Convert to fraction form
    211,500.76/316,828.14 = 127,214.38/x
  3. Step 3: Cross multiply
    211,500.76x = 316,828.14 × 127,214.38
  4. Step 4: Simplify right side
    211,500.76x = 40,305,095,396.65
  5. Step 5: Solve for x
    x = 40,305,095,396.65/211,500.76
  6. Step 6: Final answer
    x = 190,567.14

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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.