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Finding the Fourth Proportional to 388,677.44, 583,327.20 and 201,742.40

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Solution

The fourth proportional to 388,677.44, 583,327.20 and 201,742.40 is: 302,775.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,677.44 : 583,327.20 = 201,742.40 : x
  2. Step 2: Convert to fraction form
    388,677.44/583,327.20 = 201,742.40/x
  3. Step 3: Cross multiply
    388,677.44x = 583,327.20 × 201,742.40
  4. Step 4: Simplify right side
    388,677.44x = 117,681,826,396.64
  5. Step 5: Solve for x
    x = 117,681,826,396.64/388,677.44
  6. Step 6: Final answer
    x = 302,775.04

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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.