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Finding the Fourth Proportional to 307,370.22, 424,172.76 and 171,412.77

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Solution

The fourth proportional to 307,370.22, 424,172.76 and 171,412.77 is: 236,550.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,370.22 : 424,172.76 = 171,412.77 : x
  2. Step 2: Convert to fraction form
    307,370.22/424,172.76 = 171,412.77/x
  3. Step 3: Cross multiply
    307,370.22x = 424,172.76 × 171,412.77
  4. Step 4: Simplify right side
    307,370.22x = 72,708,627,750.15
  5. Step 5: Solve for x
    x = 72,708,627,750.15/307,370.22
  6. Step 6: Final answer
    x = 236,550.66

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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.