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Finding the Fourth Proportional to 545,037.95, 752,187.70 and 303,319.77

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Solution

The fourth proportional to 545,037.95, 752,187.70 and 303,319.77 is: 418,600.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,037.95 : 752,187.70 = 303,319.77 : x
  2. Step 2: Convert to fraction form
    545,037.95/752,187.70 = 303,319.77/x
  3. Step 3: Cross multiply
    545,037.95x = 752,187.70 × 303,319.77
  4. Step 4: Simplify right side
    545,037.95x = 228,153,400,160.83
  5. Step 5: Solve for x
    x = 228,153,400,160.83/545,037.95
  6. Step 6: Final answer
    x = 418,600.95

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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.