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Finding the Fourth Proportional to 377,065.28, 520,295.92 and 221,924.32

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Solution

The fourth proportional to 377,065.28, 520,295.92 and 221,924.32 is: 306,223.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,065.28 : 520,295.92 = 221,924.32 : x
  2. Step 2: Convert to fraction form
    377,065.28/520,295.92 = 221,924.32/x
  3. Step 3: Cross multiply
    377,065.28x = 520,295.92 × 221,924.32
  4. Step 4: Simplify right side
    377,065.28x = 115,466,318,244.77
  5. Step 5: Solve for x
    x = 115,466,318,244.77/377,065.28
  6. Step 6: Final answer
    x = 306,223.68

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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.