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Finding the Fourth Proportional to 545,157.84, 752,317.85 and 303,435.23

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Solution

The fourth proportional to 545,157.84, 752,317.85 and 303,435.23 is: 418,740.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,157.84 : 752,317.85 = 303,435.23 : x
  2. Step 2: Convert to fraction form
    545,157.84/752,317.85 = 303,435.23/x
  3. Step 3: Cross multiply
    545,157.84x = 752,317.85 × 303,435.23
  4. Step 4: Simplify right side
    545,157.84x = 228,279,734,569.09
  5. Step 5: Solve for x
    x = 228,279,734,569.09/545,157.84
  6. Step 6: Final answer
    x = 418,740.62

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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.