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Finding the Fourth Proportional to 303,349.10, 454,980.45 and 103,678.70

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Solution

The fourth proportional to 303,349.10, 454,980.45 and 103,678.70 is: 155,503.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,349.10 : 454,980.45 = 103,678.70 : x
  2. Step 2: Convert to fraction form
    303,349.10/454,980.45 = 103,678.70/x
  3. Step 3: Cross multiply
    303,349.10x = 454,980.45 × 103,678.70
  4. Step 4: Simplify right side
    303,349.10x = 47,171,781,581.42
  5. Step 5: Solve for x
    x = 47,171,781,581.42/303,349.10
  6. Step 6: Final answer
    x = 155,503.29

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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.