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Finding the Fourth Proportional to 312,764.76, 469,146.60 and 88,124.76

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Solution

The fourth proportional to 312,764.76, 469,146.60 and 88,124.76 is: 132,186.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,764.76 : 469,146.60 = 88,124.76 : x
  2. Step 2: Convert to fraction form
    312,764.76/469,146.60 = 88,124.76/x
  3. Step 3: Cross multiply
    312,764.76x = 469,146.60 × 88,124.76
  4. Step 4: Simplify right side
    312,764.76x = 41,343,431,529.82
  5. Step 5: Solve for x
    x = 41,343,431,529.82/312,764.76
  6. Step 6: Final answer
    x = 132,186.99

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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.