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Finding the Fourth Proportional to 376,952.65, 520,270.32 and 223,961.40

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Solution

The fourth proportional to 376,952.65, 520,270.32 and 223,961.40 is: 309,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,952.65 : 520,270.32 = 223,961.40 : x
  2. Step 2: Convert to fraction form
    376,952.65/520,270.32 = 223,961.40/x
  3. Step 3: Cross multiply
    376,952.65x = 520,270.32 × 223,961.40
  4. Step 4: Simplify right side
    376,952.65x = 116,520,468,825.72
  5. Step 5: Solve for x
    x = 116,520,468,825.72/376,952.65
  6. Step 6: Final answer
    x = 309,111.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.