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Finding the Fourth Proportional to 266,027.20, 399,501.60 and 141,611.20

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Solution

The fourth proportional to 266,027.20, 399,501.60 and 141,611.20 is: 212,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,027.20 : 399,501.60 = 141,611.20 : x
  2. Step 2: Convert to fraction form
    266,027.20/399,501.60 = 141,611.20/x
  3. Step 3: Cross multiply
    266,027.20x = 399,501.60 × 141,611.20
  4. Step 4: Simplify right side
    266,027.20x = 56,573,900,977.92
  5. Step 5: Solve for x
    x = 56,573,900,977.92/266,027.20
  6. Step 6: Final answer
    x = 212,662.09

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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.