Home / 268,749.40-370,866.32-147,890.64

Finding the Fourth Proportional to 268,749.40, 370,866.32 and 147,890.64

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Solution

The fourth proportional to 268,749.40, 370,866.32 and 147,890.64 is: 204,084.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,749.40 : 370,866.32 = 147,890.64 : x
  2. Step 2: Convert to fraction form
    268,749.40/370,866.32 = 147,890.64/x
  3. Step 3: Cross multiply
    268,749.40x = 370,866.32 × 147,890.64
  4. Step 4: Simplify right side
    268,749.40x = 54,847,657,419.24
  5. Step 5: Solve for x
    x = 54,847,657,419.24/268,749.40
  6. Step 6: Final answer
    x = 204,084.76

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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.