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Finding the Fourth Proportional to 377,525.46, 520,986.86 and 216,389.93

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Solution

The fourth proportional to 377,525.46, 520,986.86 and 216,389.93 is: 298,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,525.46 : 520,986.86 = 216,389.93 : x
  2. Step 2: Convert to fraction form
    377,525.46/520,986.86 = 216,389.93/x
  3. Step 3: Cross multiply
    377,525.46x = 520,986.86 × 216,389.93
  4. Step 4: Simplify right side
    377,525.46x = 112,736,310,830.05
  5. Step 5: Solve for x
    x = 112,736,310,830.05/377,525.46
  6. Step 6: Final answer
    x = 298,619.10

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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.