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Finding the Fourth Proportional to 377,123.46, 520,439.20 and 205,051.20

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Solution

The fourth proportional to 377,123.46, 520,439.20 and 205,051.20 is: 282,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,123.46 : 520,439.20 = 205,051.20 : x
  2. Step 2: Convert to fraction form
    377,123.46/520,439.20 = 205,051.20/x
  3. Step 3: Cross multiply
    377,123.46x = 520,439.20 × 205,051.20
  4. Step 4: Simplify right side
    377,123.46x = 106,716,682,487.04
  5. Step 5: Solve for x
    x = 106,716,682,487.04/377,123.46
  6. Step 6: Final answer
    x = 282,975.45

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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.