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Finding the Fourth Proportional to 285,587.60, 428,003.40 and 152,180.60

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Solution

The fourth proportional to 285,587.60, 428,003.40 and 152,180.60 is: 228,069.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,587.60 : 428,003.40 = 152,180.60 : x
  2. Step 2: Convert to fraction form
    285,587.60/428,003.40 = 152,180.60/x
  3. Step 3: Cross multiply
    285,587.60x = 428,003.40 × 152,180.60
  4. Step 4: Simplify right side
    285,587.60x = 65,133,814,214.04
  5. Step 5: Solve for x
    x = 65,133,814,214.04/285,587.60
  6. Step 6: Final answer
    x = 228,069.48

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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.