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Finding the Fourth Proportional to 545,158.03, 752,318.11 and 303,435.42

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Solution

The fourth proportional to 545,158.03, 752,318.11 and 303,435.42 is: 418,740.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,158.03 : 752,318.11 = 303,435.42 : x
  2. Step 2: Convert to fraction form
    545,158.03/752,318.11 = 303,435.42/x
  3. Step 3: Cross multiply
    545,158.03x = 752,318.11 × 303,435.42
  4. Step 4: Simplify right side
    545,158.03x = 228,279,959,239.56
  5. Step 5: Solve for x
    x = 228,279,959,239.56/545,158.03
  6. Step 6: Final answer
    x = 418,740.89

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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.