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Finding the Fourth Proportional to 307,155.08, 460,730.76 and 79,450.70

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Solution

The fourth proportional to 307,155.08, 460,730.76 and 79,450.70 is: 119,175.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,155.08 : 460,730.76 = 79,450.70 : x
  2. Step 2: Convert to fraction form
    307,155.08/460,730.76 = 79,450.70/x
  3. Step 3: Cross multiply
    307,155.08x = 460,730.76 × 79,450.70
  4. Step 4: Simplify right side
    307,155.08x = 36,605,381,393.53
  5. Step 5: Solve for x
    x = 36,605,381,393.53/307,155.08
  6. Step 6: Final answer
    x = 119,175.57

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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.