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Finding the Fourth Proportional to 283,676.40, 425,514.60 and 157,705.20

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Solution

The fourth proportional to 283,676.40, 425,514.60 and 157,705.20 is: 236,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,676.40 : 425,514.60 = 157,705.20 : x
  2. Step 2: Convert to fraction form
    283,676.40/425,514.60 = 157,705.20/x
  3. Step 3: Cross multiply
    283,676.40x = 425,514.60 × 157,705.20
  4. Step 4: Simplify right side
    283,676.40x = 67,105,865,095.92
  5. Step 5: Solve for x
    x = 67,105,865,095.92/283,676.40
  6. Step 6: Final answer
    x = 236,557.80

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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.