Home / 212,006.09-318,007.51-54,234.29

Finding the Fourth Proportional to 212,006.09, 318,007.51 and 54,234.29

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Solution

The fourth proportional to 212,006.09, 318,007.51 and 54,234.29 is: 81,351.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,006.09 : 318,007.51 = 54,234.29 : x
  2. Step 2: Convert to fraction form
    212,006.09/318,007.51 = 54,234.29/x
  3. Step 3: Cross multiply
    212,006.09x = 318,007.51 × 54,234.29
  4. Step 4: Simplify right side
    212,006.09x = 17,246,909,793.89
  5. Step 5: Solve for x
    x = 17,246,909,793.89/212,006.09
  6. Step 6: Final answer
    x = 81,351.01

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1.5x scale

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.