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Finding the Fourth Proportional to 545,086.45, 752,211.80 and 303,368.98

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Solution

The fourth proportional to 545,086.45, 752,211.80 and 303,368.98 is: 418,645.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,086.45 : 752,211.80 = 303,368.98 : x
  2. Step 2: Convert to fraction form
    545,086.45/752,211.80 = 303,368.98/x
  3. Step 3: Cross multiply
    545,086.45x = 752,211.80 × 303,368.98
  4. Step 4: Simplify right side
    545,086.45x = 228,197,726,509.96
  5. Step 5: Solve for x
    x = 228,197,726,509.96/545,086.45
  6. Step 6: Final answer
    x = 418,645.02

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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.