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Finding the Fourth Proportional to 348,838.60, 523,257.90 and 149,384.20

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Solution

The fourth proportional to 348,838.60, 523,257.90 and 149,384.20 is: 224,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,838.60 : 523,257.90 = 149,384.20 : x
  2. Step 2: Convert to fraction form
    348,838.60/523,257.90 = 149,384.20/x
  3. Step 3: Cross multiply
    348,838.60x = 523,257.90 × 149,384.20
  4. Step 4: Simplify right side
    348,838.60x = 78,166,462,785.18
  5. Step 5: Solve for x
    x = 78,166,462,785.18/348,838.60
  6. Step 6: Final answer
    x = 224,076.30

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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.