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Finding the Fourth Proportional to 285,960.29, 394,672.50 and 158,676.89

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Solution

The fourth proportional to 285,960.29, 394,672.50 and 158,676.89 is: 219,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,960.29 : 394,672.50 = 158,676.89 : x
  2. Step 2: Convert to fraction form
    285,960.29/394,672.50 = 158,676.89/x
  3. Step 3: Cross multiply
    285,960.29x = 394,672.50 × 158,676.89
  4. Step 4: Simplify right side
    285,960.29x = 62,625,402,895.16
  5. Step 5: Solve for x
    x = 62,625,402,895.16/285,960.29
  6. Step 6: Final answer
    x = 219,000.35

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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.