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Finding the Fourth Proportional to 369,914, 554,903.78 and 103,677.72

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Solution

The fourth proportional to 369,914, 554,903.78 and 103,677.72 is: 155,525.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,914 : 554,903.78 = 103,677.72 : x
  2. Step 2: Convert to fraction form
    369,914/554,903.78 = 103,677.72/x
  3. Step 3: Cross multiply
    369,914x = 554,903.78 × 103,677.72
  4. Step 4: Simplify right side
    369,914x = 57,531,158,729.78
  5. Step 5: Solve for x
    x = 57,531,158,729.78/369,914
  6. Step 6: Final answer
    x = 155,525.77

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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.