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Finding the Fourth Proportional to 285,994.50, 429,110.73 and 125,988.54

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Solution

The fourth proportional to 285,994.50, 429,110.73 and 125,988.54 is: 189,035.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,994.50 : 429,110.73 = 125,988.54 : x
  2. Step 2: Convert to fraction form
    285,994.50/429,110.73 = 125,988.54/x
  3. Step 3: Cross multiply
    285,994.50x = 429,110.73 × 125,988.54
  4. Step 4: Simplify right side
    285,994.50x = 54,063,034,371.03
  5. Step 5: Solve for x
    x = 54,063,034,371.03/285,994.50
  6. Step 6: Final answer
    x = 189,035.22

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1.5x scale

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.