Home / 211,229.70-316,740.87-104,490.33

Finding the Fourth Proportional to 211,229.70, 316,740.87 and 104,490.33

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Solution

The fourth proportional to 211,229.70, 316,740.87 and 104,490.33 is: 156,684.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,229.70 : 316,740.87 = 104,490.33 : x
  2. Step 2: Convert to fraction form
    211,229.70/316,740.87 = 104,490.33/x
  3. Step 3: Cross multiply
    211,229.70x = 316,740.87 × 104,490.33
  4. Step 4: Simplify right side
    211,229.70x = 33,096,358,030.79
  5. Step 5: Solve for x
    x = 33,096,358,030.79/211,229.70
  6. Step 6: Final answer
    x = 156,684.21

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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.