Home / 285,192.72-428,564.52-152,166.96

Finding the Fourth Proportional to 285,192.72, 428,564.52 and 152,166.96

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Solution

The fourth proportional to 285,192.72, 428,564.52 and 152,166.96 is: 228,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,192.72 : 428,564.52 = 152,166.96 : x
  2. Step 2: Convert to fraction form
    285,192.72/428,564.52 = 152,166.96/x
  3. Step 3: Cross multiply
    285,192.72x = 428,564.52 × 152,166.96
  4. Step 4: Simplify right side
    285,192.72x = 65,213,360,172.26
  5. Step 5: Solve for x
    x = 65,213,360,172.26/285,192.72
  6. Step 6: Final answer
    x = 228,664.18

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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.