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Finding the Fourth Proportional to 285,549.99, 394,059.42 and 156,467.96

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Solution

The fourth proportional to 285,549.99, 394,059.42 and 156,467.96 is: 215,926.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,549.99 : 394,059.42 = 156,467.96 : x
  2. Step 2: Convert to fraction form
    285,549.99/394,059.42 = 156,467.96/x
  3. Step 3: Cross multiply
    285,549.99x = 394,059.42 × 156,467.96
  4. Step 4: Simplify right side
    285,549.99x = 61,657,671,595.89
  5. Step 5: Solve for x
    x = 61,657,671,595.89/285,549.99
  6. Step 6: Final answer
    x = 215,926.01

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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.