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Finding the Fourth Proportional to 200,018.60, 275,895.60 and 128,285.00

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Solution

The fourth proportional to 200,018.60, 275,895.60 and 128,285.00 is: 176,949.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,018.60 : 275,895.60 = 128,285.00 : x
  2. Step 2: Convert to fraction form
    200,018.60/275,895.60 = 128,285.00/x
  3. Step 3: Cross multiply
    200,018.60x = 275,895.60 × 128,285.00
  4. Step 4: Simplify right side
    200,018.60x = 35,393,265,666.52
  5. Step 5: Solve for x
    x = 35,393,265,666.52/200,018.60
  6. Step 6: Final answer
    x = 176,949.88

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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.