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Finding the Fourth Proportional to 200,087.10, 280,588.50 and 200,087.10

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Solution

The fourth proportional to 200,087.10, 280,588.50 and 200,087.10 is: 280,588.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,087.10 : 280,588.50 = 200,087.10 : x
  2. Step 2: Convert to fraction form
    200,087.10/280,588.50 = 200,087.10/x
  3. Step 3: Cross multiply
    200,087.10x = 280,588.50 × 200,087.10
  4. Step 4: Simplify right side
    200,087.10x = 56,142,139,258.35
  5. Step 5: Solve for x
    x = 56,142,139,258.35/200,087.10
  6. Step 6: Final answer
    x = 280,588.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.