Home / 283,628.23-391,406.94-156,303.82

Finding the Fourth Proportional to 283,628.23, 391,406.94 and 156,303.82

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Solution

The fourth proportional to 283,628.23, 391,406.94 and 156,303.82 is: 215,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,628.23 : 391,406.94 = 156,303.82 : x
  2. Step 2: Convert to fraction form
    283,628.23/391,406.94 = 156,303.82/x
  3. Step 3: Cross multiply
    283,628.23x = 391,406.94 × 156,303.82
  4. Step 4: Simplify right side
    283,628.23x = 61,178,399,896.51
  5. Step 5: Solve for x
    x = 61,178,399,896.51/283,628.23
  6. Step 6: Final answer
    x = 215,699.26

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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.