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Finding the Fourth Proportional to 331,165.42, 496,783.68 and 141,645.47

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Solution

The fourth proportional to 331,165.42, 496,783.68 and 141,645.47 is: 212,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,165.42 : 496,783.68 = 141,645.47 : x
  2. Step 2: Convert to fraction form
    331,165.42/496,783.68 = 141,645.47/x
  3. Step 3: Cross multiply
    331,165.42x = 496,783.68 × 141,645.47
  4. Step 4: Simplify right side
    331,165.42x = 70,367,154,826.84
  5. Step 5: Solve for x
    x = 70,367,154,826.84/331,165.42
  6. Step 6: Final answer
    x = 212,483.40

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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.