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Finding the Fourth Proportional to 376,891, 565,595.70 and 155,275

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Solution

The fourth proportional to 376,891, 565,595.70 and 155,275 is: 233,019.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,891 : 565,595.70 = 155,275 : x
  2. Step 2: Convert to fraction form
    376,891/565,595.70 = 155,275/x
  3. Step 3: Cross multiply
    376,891x = 565,595.70 × 155,275
  4. Step 4: Simplify right side
    376,891x = 87,822,872,317.50
  5. Step 5: Solve for x
    x = 87,822,872,317.50/376,891
  6. Step 6: Final answer
    x = 233,019.29

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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.