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Finding the Fourth Proportional to 283,763.58, 425,646.90 and 84,085.70

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Solution

The fourth proportional to 283,763.58, 425,646.90 and 84,085.70 is: 126,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,763.58 : 425,646.90 = 84,085.70 : x
  2. Step 2: Convert to fraction form
    283,763.58/425,646.90 = 84,085.70/x
  3. Step 3: Cross multiply
    283,763.58x = 425,646.90 × 84,085.70
  4. Step 4: Simplify right side
    283,763.58x = 35,790,817,539.33
  5. Step 5: Solve for x
    x = 35,790,817,539.33/283,763.58
  6. Step 6: Final answer
    x = 126,129.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.