Home / 245,810.08-339,212.96-138,377.76

Finding the Fourth Proportional to 245,810.08, 339,212.96 and 138,377.76

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Solution

The fourth proportional to 245,810.08, 339,212.96 and 138,377.76 is: 190,958.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,810.08 : 339,212.96 = 138,377.76 : x
  2. Step 2: Convert to fraction form
    245,810.08/339,212.96 = 138,377.76/x
  3. Step 3: Cross multiply
    245,810.08x = 339,212.96 × 138,377.76
  4. Step 4: Simplify right side
    245,810.08x = 46,939,529,567.77
  5. Step 5: Solve for x
    x = 46,939,529,567.77/245,810.08
  6. Step 6: Final answer
    x = 190,958.52

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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.