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Finding the Fourth Proportional to 375,415.66, 563,118.73 and 91,108.55

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Solution

The fourth proportional to 375,415.66, 563,118.73 and 91,108.55 is: 136,661.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,415.66 : 563,118.73 = 91,108.55 : x
  2. Step 2: Convert to fraction form
    375,415.66/563,118.73 = 91,108.55/x
  3. Step 3: Cross multiply
    375,415.66x = 563,118.73 × 91,108.55
  4. Step 4: Simplify right side
    375,415.66x = 51,304,929,493.11
  5. Step 5: Solve for x
    x = 51,304,929,493.11/375,415.66
  6. Step 6: Final answer
    x = 136,661.67

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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.