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Finding the Fourth Proportional to 323,515, 446,455.56 and 187,559.20

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Solution

The fourth proportional to 323,515, 446,455.56 and 187,559.20 is: 258,834.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,515 : 446,455.56 = 187,559.20 : x
  2. Step 2: Convert to fraction form
    323,515/446,455.56 = 187,559.20/x
  3. Step 3: Cross multiply
    323,515x = 446,455.56 × 187,559.20
  4. Step 4: Simplify right side
    323,515x = 83,736,847,669.15
  5. Step 5: Solve for x
    x = 83,736,847,669.15/323,515
  6. Step 6: Final answer
    x = 258,834.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.