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Finding the Fourth Proportional to 354,461.60, 531,206.40 and 227,712.80

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Solution

The fourth proportional to 354,461.60, 531,206.40 and 227,712.80 is: 341,256.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,461.60 : 531,206.40 = 227,712.80 : x
  2. Step 2: Convert to fraction form
    354,461.60/531,206.40 = 227,712.80/x
  3. Step 3: Cross multiply
    354,461.60x = 531,206.40 × 227,712.80
  4. Step 4: Simplify right side
    354,461.60x = 120,962,496,721.92
  5. Step 5: Solve for x
    x = 120,962,496,721.92/354,461.60
  6. Step 6: Final answer
    x = 341,256.98

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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.