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Finding the Fourth Proportional to 353,030.53, 529,580.45 and 100,322.68

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Solution

The fourth proportional to 353,030.53, 529,580.45 and 100,322.68 is: 150,493.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,030.53 : 529,580.45 = 100,322.68 : x
  2. Step 2: Convert to fraction form
    353,030.53/529,580.45 = 100,322.68/x
  3. Step 3: Cross multiply
    353,030.53x = 529,580.45 × 100,322.68
  4. Step 4: Simplify right side
    353,030.53x = 53,128,930,019.61
  5. Step 5: Solve for x
    x = 53,128,930,019.61/353,030.53
  6. Step 6: Final answer
    x = 150,493.87

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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.