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Finding the Fourth Proportional to 323,140.62, 445,866.47 and 187,125.63

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Solution

The fourth proportional to 323,140.62, 445,866.47 and 187,125.63 is: 258,194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,140.62 : 445,866.47 = 187,125.63 : x
  2. Step 2: Convert to fraction form
    323,140.62/445,866.47 = 187,125.63/x
  3. Step 3: Cross multiply
    323,140.62x = 445,866.47 × 187,125.63
  4. Step 4: Simplify right side
    323,140.62x = 83,433,043,159.00
  5. Step 5: Solve for x
    x = 83,433,043,159.00/323,140.62
  6. Step 6: Final answer
    x = 258,194.23

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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.