Home / 283,622.69-391,380.75-156,298.25

Finding the Fourth Proportional to 283,622.69, 391,380.75 and 156,298.25

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Solution

The fourth proportional to 283,622.69, 391,380.75 and 156,298.25 is: 215,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,622.69 : 391,380.75 = 156,298.25 : x
  2. Step 2: Convert to fraction form
    283,622.69/391,380.75 = 156,298.25/x
  3. Step 3: Cross multiply
    283,622.69x = 391,380.75 × 156,298.25
  4. Step 4: Simplify right side
    283,622.69x = 61,172,126,308.69
  5. Step 5: Solve for x
    x = 61,172,126,308.69/283,622.69
  6. Step 6: Final answer
    x = 215,681.36

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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.