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Finding the Fourth Proportional to 303,653.61, 455,175.59 and 103,837.28

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Solution

The fourth proportional to 303,653.61, 455,175.59 and 103,837.28 is: 155,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,653.61 : 455,175.59 = 103,837.28 : x
  2. Step 2: Convert to fraction form
    303,653.61/455,175.59 = 103,837.28/x
  3. Step 3: Cross multiply
    303,653.61x = 455,175.59 × 103,837.28
  4. Step 4: Simplify right side
    303,653.61x = 47,264,192,392.93
  5. Step 5: Solve for x
    x = 47,264,192,392.93/303,653.61
  6. Step 6: Final answer
    x = 155,651.67

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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.