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Finding the Fourth Proportional to 289,034.60, 432,531.30 and 252,001.40

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Solution

The fourth proportional to 289,034.60, 432,531.30 and 252,001.40 is: 377,112.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,034.60 : 432,531.30 = 252,001.40 : x
  2. Step 2: Convert to fraction form
    289,034.60/432,531.30 = 252,001.40/x
  3. Step 3: Cross multiply
    289,034.60x = 432,531.30 × 252,001.40
  4. Step 4: Simplify right side
    289,034.60x = 108,998,493,143.82
  5. Step 5: Solve for x
    x = 108,998,493,143.82/289,034.60
  6. Step 6: Final answer
    x = 377,112.27

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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.