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Finding the Fourth Proportional to 303,604.60, 454,532.10 and 272,111.80

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Solution

The fourth proportional to 303,604.60, 454,532.10 and 272,111.80 is: 407,383.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,604.60 : 454,532.10 = 272,111.80 : x
  2. Step 2: Convert to fraction form
    303,604.60/454,532.10 = 272,111.80/x
  3. Step 3: Cross multiply
    303,604.60x = 454,532.10 × 272,111.80
  4. Step 4: Simplify right side
    303,604.60x = 123,683,547,888.78
  5. Step 5: Solve for x
    x = 123,683,547,888.78/303,604.60
  6. Step 6: Final answer
    x = 407,383.64

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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.