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Finding the Fourth Proportional to 511,457.88, 767,217.54 and 156,474.98

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Solution

The fourth proportional to 511,457.88, 767,217.54 and 156,474.98 is: 234,721.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,457.88 : 767,217.54 = 156,474.98 : x
  2. Step 2: Convert to fraction form
    511,457.88/767,217.54 = 156,474.98/x
  3. Step 3: Cross multiply
    511,457.88x = 767,217.54 × 156,474.98
  4. Step 4: Simplify right side
    511,457.88x = 120,050,344,608.69
  5. Step 5: Solve for x
    x = 120,050,344,608.69/511,457.88
  6. Step 6: Final answer
    x = 234,721.86

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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.