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Finding the Fourth Proportional to 545,081.56, 752,234.28 and 303,374.32

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Solution

The fourth proportional to 545,081.56, 752,234.28 and 303,374.32 is: 418,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,081.56 : 752,234.28 = 303,374.32 : x
  2. Step 2: Convert to fraction form
    545,081.56/752,234.28 = 303,374.32/x
  3. Step 3: Cross multiply
    545,081.56x = 752,234.28 × 303,374.32
  4. Step 4: Simplify right side
    545,081.56x = 228,208,563,175.69
  5. Step 5: Solve for x
    x = 228,208,563,175.69/545,081.56
  6. Step 6: Final answer
    x = 418,668.65

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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.