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Finding the Fourth Proportional to 201,890.40, 303,127.20 and 152,318.40

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Solution

The fourth proportional to 201,890.40, 303,127.20 and 152,318.40 is: 228,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,890.40 : 303,127.20 = 152,318.40 : x
  2. Step 2: Convert to fraction form
    201,890.40/303,127.20 = 152,318.40/x
  3. Step 3: Cross multiply
    201,890.40x = 303,127.20 × 152,318.40
  4. Step 4: Simplify right side
    201,890.40x = 46,171,850,100.48
  5. Step 5: Solve for x
    x = 46,171,850,100.48/201,890.40
  6. Step 6: Final answer
    x = 228,697.60

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1.5x scale

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.