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Finding the Fourth Proportional to 303,109.73, 454,664.52 and 103,430.10

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Solution

The fourth proportional to 303,109.73, 454,664.52 and 103,430.10 is: 155,145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,109.73 : 454,664.52 = 103,430.10 : x
  2. Step 2: Convert to fraction form
    303,109.73/454,664.52 = 103,430.10/x
  3. Step 3: Cross multiply
    303,109.73x = 454,664.52 × 103,430.10
  4. Step 4: Simplify right side
    303,109.73x = 47,025,996,252.90
  5. Step 5: Solve for x
    x = 47,025,996,252.90/303,109.73
  6. Step 6: Final answer
    x = 155,145.12

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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.