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Finding the Fourth Proportional to 377,528.46, 520,991 and 216,392.93

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Solution

The fourth proportional to 377,528.46, 520,991 and 216,392.93 is: 298,623.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,528.46 : 520,991 = 216,392.93 : x
  2. Step 2: Convert to fraction form
    377,528.46/520,991 = 216,392.93/x
  3. Step 3: Cross multiply
    377,528.46x = 520,991 × 216,392.93
  4. Step 4: Simplify right side
    377,528.46x = 112,738,768,993.63
  5. Step 5: Solve for x
    x = 112,738,768,993.63/377,528.46
  6. Step 6: Final answer
    x = 298,623.23

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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.