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Finding the Fourth Proportional to 311,893, 430,412.03 and 168,652.70

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Solution

The fourth proportional to 311,893, 430,412.03 and 168,652.70 is: 232,740.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,893 : 430,412.03 = 168,652.70 : x
  2. Step 2: Convert to fraction form
    311,893/430,412.03 = 168,652.70/x
  3. Step 3: Cross multiply
    311,893x = 430,412.03 × 168,652.70
  4. Step 4: Simplify right side
    311,893x = 72,590,150,971.98
  5. Step 5: Solve for x
    x = 72,590,150,971.98/311,893
  6. Step 6: Final answer
    x = 232,740.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.