Home / 283,703.13-391,670.51-188,340.21

Finding the Fourth Proportional to 283,703.13, 391,670.51 and 188,340.21

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Solution

The fourth proportional to 283,703.13, 391,670.51 and 188,340.21 is: 260,015.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,703.13 : 391,670.51 = 188,340.21 : x
  2. Step 2: Convert to fraction form
    283,703.13/391,670.51 = 188,340.21/x
  3. Step 3: Cross multiply
    283,703.13x = 391,670.51 × 188,340.21
  4. Step 4: Simplify right side
    283,703.13x = 73,767,305,162.51
  5. Step 5: Solve for x
    x = 73,767,305,162.51/283,703.13
  6. Step 6: Final answer
    x = 260,015.83

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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.