Home / 427,349.52-641,172.96-161,186.40

Finding the Fourth Proportional to 427,349.52, 641,172.96 and 161,186.40

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Solution

The fourth proportional to 427,349.52, 641,172.96 and 161,186.40 is: 241,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,349.52 : 641,172.96 = 161,186.40 : x
  2. Step 2: Convert to fraction form
    427,349.52/641,172.96 = 161,186.40/x
  3. Step 3: Cross multiply
    427,349.52x = 641,172.96 × 161,186.40
  4. Step 4: Simplify right side
    427,349.52x = 103,348,361,199.74
  5. Step 5: Solve for x
    x = 103,348,361,199.74/427,349.52
  6. Step 6: Final answer
    x = 241,835.68

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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.