Home / 285,739.14-394,298.46-156,657

Finding the Fourth Proportional to 285,739.14, 394,298.46 and 156,657

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Solution

The fourth proportional to 285,739.14, 394,298.46 and 156,657 is: 216,174.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,739.14 : 394,298.46 = 156,657 : x
  2. Step 2: Convert to fraction form
    285,739.14/394,298.46 = 156,657/x
  3. Step 3: Cross multiply
    285,739.14x = 394,298.46 × 156,657
  4. Step 4: Simplify right side
    285,739.14x = 61,769,613,848.22
  5. Step 5: Solve for x
    x = 61,769,613,848.22/285,739.14
  6. Step 6: Final answer
    x = 216,174.84

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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.