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Finding the Fourth Proportional to 303,880.94, 455,821.74 and 79,241.18

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Solution

The fourth proportional to 303,880.94, 455,821.74 and 79,241.18 is: 118,861.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,880.94 : 455,821.74 = 79,241.18 : x
  2. Step 2: Convert to fraction form
    303,880.94/455,821.74 = 79,241.18/x
  3. Step 3: Cross multiply
    303,880.94x = 455,821.74 × 79,241.18
  4. Step 4: Simplify right side
    303,880.94x = 36,119,852,547.25
  5. Step 5: Solve for x
    x = 36,119,852,547.25/303,880.94
  6. Step 6: Final answer
    x = 118,861.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.