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Finding the Fourth Proportional to 267,260.40, 400,890.60 and 243,154.80

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Solution

The fourth proportional to 267,260.40, 400,890.60 and 243,154.80 is: 364,732.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,260.40 : 400,890.60 = 243,154.80 : x
  2. Step 2: Convert to fraction form
    267,260.40/400,890.60 = 243,154.80/x
  3. Step 3: Cross multiply
    267,260.40x = 400,890.60 × 243,154.80
  4. Step 4: Simplify right side
    267,260.40x = 97,478,473,664.88
  5. Step 5: Solve for x
    x = 97,478,473,664.88/267,260.40
  6. Step 6: Final answer
    x = 364,732.20

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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.