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Finding the Fourth Proportional to 375,611.82, 563,418.76 and 109,378.86

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Solution

The fourth proportional to 375,611.82, 563,418.76 and 109,378.86 is: 164,068.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,611.82 : 563,418.76 = 109,378.86 : x
  2. Step 2: Convert to fraction form
    375,611.82/563,418.76 = 109,378.86/x
  3. Step 3: Cross multiply
    375,611.82x = 563,418.76 × 109,378.86
  4. Step 4: Simplify right side
    375,611.82x = 61,626,101,671.41
  5. Step 5: Solve for x
    x = 61,626,101,671.41/375,611.82
  6. Step 6: Final answer
    x = 164,068.59

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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.