Home / 311,736.77-430,193.72-173,916.89

Finding the Fourth Proportional to 311,736.77, 430,193.72 and 173,916.89

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Solution

The fourth proportional to 311,736.77, 430,193.72 and 173,916.89 is: 240,003.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,736.77 : 430,193.72 = 173,916.89 : x
  2. Step 2: Convert to fraction form
    311,736.77/430,193.72 = 173,916.89/x
  3. Step 3: Cross multiply
    311,736.77x = 430,193.72 × 173,916.89
  4. Step 4: Simplify right side
    311,736.77x = 74,817,950,859.38
  5. Step 5: Solve for x
    x = 74,817,950,859.38/311,736.77
  6. Step 6: Final answer
    x = 240,003.62

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1.5x scale

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.