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Finding the Fourth Proportional to 305,622, 458,617.32 and 130,518

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Solution

The fourth proportional to 305,622, 458,617.32 and 130,518 is: 195,855.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,622 : 458,617.32 = 130,518 : x
  2. Step 2: Convert to fraction form
    305,622/458,617.32 = 130,518/x
  3. Step 3: Cross multiply
    305,622x = 458,617.32 × 130,518
  4. Step 4: Simplify right side
    305,622x = 59,857,815,371.76
  5. Step 5: Solve for x
    x = 59,857,815,371.76/305,622
  6. Step 6: Final answer
    x = 195,855.72

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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.