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Finding the Fourth Proportional to 300,530.94, 450,692.59 and 87,241.02

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Solution

The fourth proportional to 300,530.94, 450,692.59 and 87,241.02 is: 130,831.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,530.94 : 450,692.59 = 87,241.02 : x
  2. Step 2: Convert to fraction form
    300,530.94/450,692.59 = 87,241.02/x
  3. Step 3: Cross multiply
    300,530.94x = 450,692.59 × 87,241.02
  4. Step 4: Simplify right side
    300,530.94x = 39,318,881,258.04
  5. Step 5: Solve for x
    x = 39,318,881,258.04/300,530.94
  6. Step 6: Final answer
    x = 130,831.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.