Home / 286,821.30-430,086.15-168,528.90

Finding the Fourth Proportional to 286,821.30, 430,086.15 and 168,528.90

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Solution

The fourth proportional to 286,821.30, 430,086.15 and 168,528.90 is: 252,707.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,821.30 : 430,086.15 = 168,528.90 : x
  2. Step 2: Convert to fraction form
    286,821.30/430,086.15 = 168,528.90/x
  3. Step 3: Cross multiply
    286,821.30x = 430,086.15 × 168,528.90
  4. Step 4: Simplify right side
    286,821.30x = 72,481,945,764.74
  5. Step 5: Solve for x
    x = 72,481,945,764.74/286,821.30
  6. Step 6: Final answer
    x = 252,707.68

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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.