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Finding the Fourth Proportional to 340,384.60, 510,576.90 and 228,410.20

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Solution

The fourth proportional to 340,384.60, 510,576.90 and 228,410.20 is: 342,615.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,384.60 : 510,576.90 = 228,410.20 : x
  2. Step 2: Convert to fraction form
    340,384.60/510,576.90 = 228,410.20/x
  3. Step 3: Cross multiply
    340,384.60x = 510,576.90 × 228,410.20
  4. Step 4: Simplify right side
    340,384.60x = 116,620,971,844.38
  5. Step 5: Solve for x
    x = 116,620,971,844.38/340,384.60
  6. Step 6: Final answer
    x = 342,615.30

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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.