Home / 423,022.05-634,200.26-209,643.27

Finding the Fourth Proportional to 423,022.05, 634,200.26 and 209,643.27

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Solution

The fourth proportional to 423,022.05, 634,200.26 and 209,643.27 is: 314,299.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,022.05 : 634,200.26 = 209,643.27 : x
  2. Step 2: Convert to fraction form
    423,022.05/634,200.26 = 209,643.27/x
  3. Step 3: Cross multiply
    423,022.05x = 634,200.26 × 209,643.27
  4. Step 4: Simplify right side
    423,022.05x = 132,955,815,293.03
  5. Step 5: Solve for x
    x = 132,955,815,293.03/423,022.05
  6. Step 6: Final answer
    x = 314,299.96

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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.