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Finding the Fourth Proportional to 371,100.66, 555,708.96 and 310,971.12

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Solution

The fourth proportional to 371,100.66, 555,708.96 and 310,971.12 is: 465,667.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,100.66 : 555,708.96 = 310,971.12 : x
  2. Step 2: Convert to fraction form
    371,100.66/555,708.96 = 310,971.12/x
  3. Step 3: Cross multiply
    371,100.66x = 555,708.96 × 310,971.12
  4. Step 4: Simplify right side
    371,100.66x = 172,809,437,685.24
  5. Step 5: Solve for x
    x = 172,809,437,685.24/371,100.66
  6. Step 6: Final answer
    x = 465,667.29

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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.