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Finding the Fourth Proportional to 311,631.96, 467,526.76 and 86,992.22

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Solution

The fourth proportional to 311,631.96, 467,526.76 and 86,992.22 is: 130,510.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,631.96 : 467,526.76 = 86,992.22 : x
  2. Step 2: Convert to fraction form
    311,631.96/467,526.76 = 86,992.22/x
  3. Step 3: Cross multiply
    311,631.96x = 467,526.76 × 86,992.22
  4. Step 4: Simplify right side
    311,631.96x = 40,671,190,761.81
  5. Step 5: Solve for x
    x = 40,671,190,761.81/311,631.96
  6. Step 6: Final answer
    x = 130,510.33

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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.