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Finding the Fourth Proportional to 281,462, 388,302.81 and 166,655.30

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Solution

The fourth proportional to 281,462, 388,302.81 and 166,655.30 is: 229,916.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,462 : 388,302.81 = 166,655.30 : x
  2. Step 2: Convert to fraction form
    281,462/388,302.81 = 166,655.30/x
  3. Step 3: Cross multiply
    281,462x = 388,302.81 × 166,655.30
  4. Step 4: Simplify right side
    281,462x = 64,712,721,291.39
  5. Step 5: Solve for x
    x = 64,712,721,291.39/281,462
  6. Step 6: Final answer
    x = 229,916.37

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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.