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Finding the Fourth Proportional to 200,555.80, 276,693.78 and 119,985.64

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Solution

The fourth proportional to 200,555.80, 276,693.78 and 119,985.64 is: 165,536.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,555.80 : 276,693.78 = 119,985.64 : x
  2. Step 2: Convert to fraction form
    200,555.80/276,693.78 = 119,985.64/x
  3. Step 3: Cross multiply
    200,555.80x = 276,693.78 × 119,985.64
  4. Step 4: Simplify right side
    200,555.80x = 33,199,280,277.32
  5. Step 5: Solve for x
    x = 33,199,280,277.32/200,555.80
  6. Step 6: Final answer
    x = 165,536.38

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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.