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Finding the Fourth Proportional to 303,570.71, 455,342.52 and 103,908.95

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Solution

The fourth proportional to 303,570.71, 455,342.52 and 103,908.95 is: 155,858.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,570.71 : 455,342.52 = 103,908.95 : x
  2. Step 2: Convert to fraction form
    303,570.71/455,342.52 = 103,908.95/x
  3. Step 3: Cross multiply
    303,570.71x = 455,342.52 × 103,908.95
  4. Step 4: Simplify right side
    303,570.71x = 47,314,160,866.84
  5. Step 5: Solve for x
    x = 47,314,160,866.84/303,570.71
  6. Step 6: Final answer
    x = 155,858.78

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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.