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Finding the Fourth Proportional to 201,865.20, 302,797.80 and 148,988.40

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Solution

The fourth proportional to 201,865.20, 302,797.80 and 148,988.40 is: 223,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,865.20 : 302,797.80 = 148,988.40 : x
  2. Step 2: Convert to fraction form
    201,865.20/302,797.80 = 148,988.40/x
  3. Step 3: Cross multiply
    201,865.20x = 302,797.80 × 148,988.40
  4. Step 4: Simplify right side
    201,865.20x = 45,113,359,745.52
  5. Step 5: Solve for x
    x = 45,113,359,745.52/201,865.20
  6. Step 6: Final answer
    x = 223,482.60

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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.