Home / 429,961.78-645,020.22-177,104.23

Finding the Fourth Proportional to 429,961.78, 645,020.22 and 177,104.23

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Solution

The fourth proportional to 429,961.78, 645,020.22 and 177,104.23 is: 265,688.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,961.78 : 645,020.22 = 177,104.23 : x
  2. Step 2: Convert to fraction form
    429,961.78/645,020.22 = 177,104.23/x
  3. Step 3: Cross multiply
    429,961.78x = 645,020.22 × 177,104.23
  4. Step 4: Simplify right side
    429,961.78x = 114,235,808,449.12
  5. Step 5: Solve for x
    x = 114,235,808,449.12/429,961.78
  6. Step 6: Final answer
    x = 265,688.29

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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.