Home / 253,742.05-380,493.89-147,156.30

Finding the Fourth Proportional to 253,742.05, 380,493.89 and 147,156.30

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Solution

The fourth proportional to 253,742.05, 380,493.89 and 147,156.30 is: 220,665.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,742.05 : 380,493.89 = 147,156.30 : x
  2. Step 2: Convert to fraction form
    253,742.05/380,493.89 = 147,156.30/x
  3. Step 3: Cross multiply
    253,742.05x = 380,493.89 × 147,156.30
  4. Step 4: Simplify right side
    253,742.05x = 55,992,072,841.06
  5. Step 5: Solve for x
    x = 55,992,072,841.06/253,742.05
  6. Step 6: Final answer
    x = 220,665.33

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1.5x scale

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.