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Finding the Fourth Proportional to 253,228.93, 379,703.17 and 103,574.32

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Solution

The fourth proportional to 253,228.93, 379,703.17 and 103,574.32 is: 155,304.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,228.93 : 379,703.17 = 103,574.32 : x
  2. Step 2: Convert to fraction form
    253,228.93/379,703.17 = 103,574.32/x
  3. Step 3: Cross multiply
    253,228.93x = 379,703.17 × 103,574.32
  4. Step 4: Simplify right side
    253,228.93x = 39,327,497,634.59
  5. Step 5: Solve for x
    x = 39,327,497,634.59/253,228.93
  6. Step 6: Final answer
    x = 155,304.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.