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Finding the Fourth Proportional to 303,679.80, 455,541.30 and 93,317.40

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Solution

The fourth proportional to 303,679.80, 455,541.30 and 93,317.40 is: 139,982.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,679.80 : 455,541.30 = 93,317.40 : x
  2. Step 2: Convert to fraction form
    303,679.80/455,541.30 = 93,317.40/x
  3. Step 3: Cross multiply
    303,679.80x = 455,541.30 × 93,317.40
  4. Step 4: Simplify right side
    303,679.80x = 42,509,929,708.62
  5. Step 5: Solve for x
    x = 42,509,929,708.62/303,679.80
  6. Step 6: Final answer
    x = 139,982.74

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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.