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Finding the Fourth Proportional to 307,501.16, 424,352.22 and 171,531.57

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Solution

The fourth proportional to 307,501.16, 424,352.22 and 171,531.57 is: 236,713.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,501.16 : 424,352.22 = 171,531.57 : x
  2. Step 2: Convert to fraction form
    307,501.16/424,352.22 = 171,531.57/x
  3. Step 3: Cross multiply
    307,501.16x = 424,352.22 × 171,531.57
  4. Step 4: Simplify right side
    307,501.16x = 72,789,803,477.66
  5. Step 5: Solve for x
    x = 72,789,803,477.66/307,501.16
  6. Step 6: Final answer
    x = 236,713.91

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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.