Home / 306,845.96-423,435.61-170,885.65

Finding the Fourth Proportional to 306,845.96, 423,435.61 and 170,885.65

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Solution

The fourth proportional to 306,845.96, 423,435.61 and 170,885.65 is: 235,815.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,845.96 : 423,435.61 = 170,885.65 : x
  2. Step 2: Convert to fraction form
    306,845.96/423,435.61 = 170,885.65/x
  3. Step 3: Cross multiply
    306,845.96x = 423,435.61 × 170,885.65
  4. Step 4: Simplify right side
    306,845.96x = 72,359,069,448.00
  5. Step 5: Solve for x
    x = 72,359,069,448.00/306,845.96
  6. Step 6: Final answer
    x = 235,815.62

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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.