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Finding the Fourth Proportional to 375,748.72, 563,614.88 and 91,440.54

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Solution

The fourth proportional to 375,748.72, 563,614.88 and 91,440.54 is: 137,158.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,748.72 : 563,614.88 = 91,440.54 : x
  2. Step 2: Convert to fraction form
    375,748.72/563,614.88 = 91,440.54/x
  3. Step 3: Cross multiply
    375,748.72x = 563,614.88 × 91,440.54
  4. Step 4: Simplify right side
    375,748.72x = 51,537,248,522.03
  5. Step 5: Solve for x
    x = 51,537,248,522.03/375,748.72
  6. Step 6: Final answer
    x = 137,158.81

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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.