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Finding the Fourth Proportional to 200,041.22, 275,926.82 and 128,307.62

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Solution

The fourth proportional to 200,041.22, 275,926.82 and 128,307.62 is: 176,981.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,041.22 : 275,926.82 = 128,307.62 : x
  2. Step 2: Convert to fraction form
    200,041.22/275,926.82 = 128,307.62/x
  3. Step 3: Cross multiply
    200,041.22x = 275,926.82 × 128,307.62
  4. Step 4: Simplify right side
    200,041.22x = 35,403,513,568.37
  5. Step 5: Solve for x
    x = 35,403,513,568.37/200,041.22
  6. Step 6: Final answer
    x = 176,981.09

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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.