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Finding the Fourth Proportional to 377,285.34, 520,642.80 and 207,519.42

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Solution

The fourth proportional to 377,285.34, 520,642.80 and 207,519.42 is: 286,370.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,285.34 : 520,642.80 = 207,519.42 : x
  2. Step 2: Convert to fraction form
    377,285.34/520,642.80 = 207,519.42/x
  3. Step 3: Cross multiply
    377,285.34x = 520,642.80 × 207,519.42
  4. Step 4: Simplify right side
    377,285.34x = 108,043,491,883.18
  5. Step 5: Solve for x
    x = 108,043,491,883.18/377,285.34
  6. Step 6: Final answer
    x = 286,370.77

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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.