Home / 661,753.33-992,146.07-212,218.32

Finding the Fourth Proportional to 661,753.33, 992,146.07 and 212,218.32

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Solution

The fourth proportional to 661,753.33, 992,146.07 and 212,218.32 is: 318,172.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,753.33 : 992,146.07 = 212,218.32 : x
  2. Step 2: Convert to fraction form
    661,753.33/992,146.07 = 212,218.32/x
  3. Step 3: Cross multiply
    661,753.33x = 992,146.07 × 212,218.32
  4. Step 4: Simplify right side
    661,753.33x = 210,551,566,148.18
  5. Step 5: Solve for x
    x = 210,551,566,148.18/661,753.33
  6. Step 6: Final answer
    x = 318,172.28

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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.