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Finding the Fourth Proportional to 351,191.68, 483,672 and 303,429.76

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Solution

The fourth proportional to 351,191.68, 483,672 and 303,429.76 is: 417,892.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,191.68 : 483,672 = 303,429.76 : x
  2. Step 2: Convert to fraction form
    351,191.68/483,672 = 303,429.76/x
  3. Step 3: Cross multiply
    351,191.68x = 483,672 × 303,429.76
  4. Step 4: Simplify right side
    351,191.68x = 146,760,478,878.72
  5. Step 5: Solve for x
    x = 146,760,478,878.72/351,191.68
  6. Step 6: Final answer
    x = 417,892.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.