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Finding the Fourth Proportional to 307,646.02, 424,537.77 and 171,672.58

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Solution

The fourth proportional to 307,646.02, 424,537.77 and 171,672.58 is: 236,900.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,646.02 : 424,537.77 = 171,672.58 : x
  2. Step 2: Convert to fraction form
    307,646.02/424,537.77 = 171,672.58/x
  3. Step 3: Cross multiply
    307,646.02x = 424,537.77 × 171,672.58
  4. Step 4: Simplify right side
    307,646.02x = 72,881,494,283.35
  5. Step 5: Solve for x
    x = 72,881,494,283.35/307,646.02
  6. Step 6: Final answer
    x = 236,900.49

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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.