Home / 283,726.25-391,544.91-156,406.40

Finding the Fourth Proportional to 283,726.25, 391,544.91 and 156,406.40

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Solution

The fourth proportional to 283,726.25, 391,544.91 and 156,406.40 is: 215,842.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,726.25 : 391,544.91 = 156,406.40 : x
  2. Step 2: Convert to fraction form
    283,726.25/391,544.91 = 156,406.40/x
  3. Step 3: Cross multiply
    283,726.25x = 391,544.91 × 156,406.40
  4. Step 4: Simplify right side
    283,726.25x = 61,240,127,853.70
  5. Step 5: Solve for x
    x = 61,240,127,853.70/283,726.25
  6. Step 6: Final answer
    x = 215,842.31

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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.