Home / 307,935.95-424,930.41-170,108.78

Finding the Fourth Proportional to 307,935.95, 424,930.41 and 170,108.78

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Solution

The fourth proportional to 307,935.95, 424,930.41 and 170,108.78 is: 234,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,935.95 : 424,930.41 = 170,108.78 : x
  2. Step 2: Convert to fraction form
    307,935.95/424,930.41 = 170,108.78/x
  3. Step 3: Cross multiply
    307,935.95x = 424,930.41 × 170,108.78
  4. Step 4: Simplify right side
    307,935.95x = 72,284,391,505.35
  5. Step 5: Solve for x
    x = 72,284,391,505.35/307,935.95
  6. Step 6: Final answer
    x = 234,738.40

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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.