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Finding the Fourth Proportional to 281,953.59, 389,090.88 and 159,444.09

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Solution

The fourth proportional to 281,953.59, 389,090.88 and 159,444.09 is: 220,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,953.59 : 389,090.88 = 159,444.09 : x
  2. Step 2: Convert to fraction form
    281,953.59/389,090.88 = 159,444.09/x
  3. Step 3: Cross multiply
    281,953.59x = 389,090.88 × 159,444.09
  4. Step 4: Simplify right side
    281,953.59x = 62,038,240,791.10
  5. Step 5: Solve for x
    x = 62,038,240,791.10/281,953.59
  6. Step 6: Final answer
    x = 220,029.97

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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.