Home / 282,695.40-390,187.26-161,906.58

Finding the Fourth Proportional to 282,695.40, 390,187.26 and 161,906.58

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Solution

The fourth proportional to 282,695.40, 390,187.26 and 161,906.58 is: 223,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,695.40 : 390,187.26 = 161,906.58 : x
  2. Step 2: Convert to fraction form
    282,695.40/390,187.26 = 161,906.58/x
  3. Step 3: Cross multiply
    282,695.40x = 390,187.26 × 161,906.58
  4. Step 4: Simplify right side
    282,695.40x = 63,173,884,826.17
  5. Step 5: Solve for x
    x = 63,173,884,826.17/282,695.40
  6. Step 6: Final answer
    x = 223,469.80

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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.