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Finding the Fourth Proportional to 313,311.69, 432,374.63 and 170,072.01

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Solution

The fourth proportional to 313,311.69, 432,374.63 and 170,072.01 is: 234,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,311.69 : 432,374.63 = 170,072.01 : x
  2. Step 2: Convert to fraction form
    313,311.69/432,374.63 = 170,072.01/x
  3. Step 3: Cross multiply
    313,311.69x = 432,374.63 × 170,072.01
  4. Step 4: Simplify right side
    313,311.69x = 73,534,821,546.75
  5. Step 5: Solve for x
    x = 73,534,821,546.75/313,311.69
  6. Step 6: Final answer
    x = 234,701.81

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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.