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Finding the Fourth Proportional to 266,124.30, 399,186.45 and 261,750.30

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Solution

The fourth proportional to 266,124.30, 399,186.45 and 261,750.30 is: 392,625.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,124.30 : 399,186.45 = 261,750.30 : x
  2. Step 2: Convert to fraction form
    266,124.30/399,186.45 = 261,750.30/x
  3. Step 3: Cross multiply
    266,124.30x = 399,186.45 × 261,750.30
  4. Step 4: Simplify right side
    266,124.30x = 104,487,173,043.44
  5. Step 5: Solve for x
    x = 104,487,173,043.44/266,124.30
  6. Step 6: Final answer
    x = 392,625.45

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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.