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Finding the Fourth Proportional to 371,610.41, 557,436.81 and 105,350

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Solution

The fourth proportional to 371,610.41, 557,436.81 and 105,350 is: 158,031.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,610.41 : 557,436.81 = 105,350 : x
  2. Step 2: Convert to fraction form
    371,610.41/557,436.81 = 105,350/x
  3. Step 3: Cross multiply
    371,610.41x = 557,436.81 × 105,350
  4. Step 4: Simplify right side
    371,610.41x = 58,725,967,933.50
  5. Step 5: Solve for x
    x = 58,725,967,933.50/371,610.41
  6. Step 6: Final answer
    x = 158,031.01

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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.