Home / 209,322.81-288,868.41-113,829.48

Finding the Fourth Proportional to 209,322.81, 288,868.41 and 113,829.48

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Solution

The fourth proportional to 209,322.81, 288,868.41 and 113,829.48 is: 157,086.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,322.81 : 288,868.41 = 113,829.48 : x
  2. Step 2: Convert to fraction form
    209,322.81/288,868.41 = 113,829.48/x
  3. Step 3: Cross multiply
    209,322.81x = 288,868.41 × 113,829.48
  4. Step 4: Simplify right side
    209,322.81x = 32,881,740,898.73
  5. Step 5: Solve for x
    x = 32,881,740,898.73/209,322.81
  6. Step 6: Final answer
    x = 157,086.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.