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Finding the Fourth Proportional to 376,887, 565,589.70 and 155,271

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Solution

The fourth proportional to 376,887, 565,589.70 and 155,271 is: 233,013.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,887 : 565,589.70 = 155,271 : x
  2. Step 2: Convert to fraction form
    376,887/565,589.70 = 155,271/x
  3. Step 3: Cross multiply
    376,887x = 565,589.70 × 155,271
  4. Step 4: Simplify right side
    376,887x = 87,819,678,308.70
  5. Step 5: Solve for x
    x = 87,819,678,308.70/376,887
  6. Step 6: Final answer
    x = 233,013.29

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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.